TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 CONT

[The Hillquist hole saw] works in a manner similar to a gem drill but uses larger diameter tubes to cut buttons, rings, and similar pieces.  2, record 1, English, - gemstone%20drill

Record 1,  Textual support,  French

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 DEF

A new synthetic garnet used particularly for the simulation of diamond.  2, record 2, English, - yttrium%20aluminium%20garnet

Record number: 2, Textual support number: 1 OBS

YAG is of marked hardness and high refractive index, used as a gemstone and in laser technology.  3, record 2, English, - yttrium%20aluminium%20garnet

Record 2,  Textual support,  French

Record 2,  Textual support,  Spanish

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 CONT

Tanzanite is a blue variety of the gemstone zoisite and named after the East African state of Tanzania, the only place in the world where it has been found. It is a trichroic gem which displays three layers of color. The colors [of] dark blue, green-yellow and red-purple can be seen.  1, record 3, English, - tanzanite

Record 3,  Textual support,  French

Record number: 3, Textual support number: 1 CONT

Très appréciée outre-atlantique, la tanzanite est une pierre fine de la famille des zoisites. Elle est d'une couleur bleue teintée de violet typique.  2, record 3, French, - tanzanite

Record 3,  Textual support,  Spanish

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 CONT

Green jasper... is a light to... dark green colored gemstone. It has a trigonal crystal system and belongs to the mineral class of oxide, [the] quartz group. The presence of iron silicate compounds such as chlorite give the crystal its green color.  1, record 4, English, - green%20jasper

Record 4,  Textual support,  French

Record number: 4, Textual support number: 1 CONT

De la famille des quartz monocristallins, le jaspe vert est d'aspect poli et c'est d'ailleurs grâce à cela qu'on le reconnaît. Dans son état le plus pur et le plus naturel, la pierre de jaspe est d'une seule couleur unie.  1, record 4, French, - jaspe%20vert

Record 4,  Textual support,  Spanish

Record 5,  Textual support,  English

Record number: 5, Textual support number: 1 DEF

The hard calcium carbonate external skeleton of the coral animal. Many individuals build up stony masses of this material which is often cut as a gemstone. The oxblood red color(arciscuro or carbonatto) is most valuable. It also comes in white(blanco), pink, cream-color, pale flesh pink(pelle d’angelo), pale rose(rosa vivo), salmon color(secondo coloro), red(rosso) and dark red(rosso scuro), yellow, brown, blue violet and black.  2, record 5, English, - coral

Record 5,  Textual support,  French

Record number: 5, Textual support number: 1 DEF

Matière calcaire qui forme les coraux, appréciée en bijouterie et en décoration [...]  2, record 5, French, - corail

Record number: 5, Textual support number: 1 OBS

La variété la plus appréciée est le corail rouge noble [...] Sa couleur, uniforme d'un bout à l'autre, va du rose tendre (corail dit «peau d'ange») au rouge sang de bœuf, parfois tacheté de blanc ou de rose.  3, record 5, French, - corail

Record number: 5, Textual support number: 2 OBS

corail : terme uniformisé par le Groupe de travail de terminologie du génie.  4, record 5, French, - corail

Record 5,  Textual support,  Spanish

Record 6,  Textual support,  English

Record number: 6, Textual support number: 1 DEF

A dark blue variety of the mineral crocidolite [considered as a] semiprecious gemstone.  5, record 6, English, - hawk%26rsquo%3Bs%2Deye

Record number: 6, Textual support number: 1 CONT

Hawk’s eye is a green, grey or blue variety of quartz that has parallel, fibrous inclusions of crocidolite that give it a greenish cat’s eye effect (chatoyancy). This mineral has a silky luster. It looks a lot like tiger’s eye, and often occurs with it in the same rock, but the internal structure is different.  2, record 6, English, - hawk%26rsquo%3Bs%2Deye

Record 6,  Textual support,  French

Record number: 6, Textual support number: 1 DEF

Variété de quartz présentant des reflets chatoyants jaune-bleu, dus à la présence d'inclusions de crocidolite.  1, record 6, French, - %26oelig%3Bil%2Dde%2Dfaucon

Record number: 6, Textual support number: 1 OBS

[Ce minéral] provient d'Afrique méridionale et est utilisé comme pierre d'ornement.  1, record 6, French, - %26oelig%3Bil%2Dde%2Dfaucon

Record 6,  Textual support,  Spanish

Record number: 6, Textual support number: 1 DEF

Cuarzo que posee inclusiones de crocidolita sin oxidar de color azul grisáceo.  1, record 6, Spanish, - ojo%20de%20halc%C3%B3n

Record 7,  Textual support,  English

Record number: 7, Textual support number: 1 DEF

A yellowish-brown to reddish-brown gemstone that has a silky luster [with] bands of yellow and brown.  6, record 7, English, - tiger%26rsquo%3Bs%20eye

Record 7,  Textual support,  French

Record number: 7, Textual support number: 1 DEF

Variété de quartz contenant des inclusions de «crocidolite», qui présente des reflets jaunes d'or très brillants.  2, record 7, French, - %26oelig%3Bil%2Dde%2Dtigre

Record number: 7, Textual support number: 1 OBS

Elle provient d'Afrique du Sud et est utilisée comme pierre d'ornement ou comme gemme, taillée en cabochon.  2, record 7, French, - %26oelig%3Bil%2Dde%2Dtigre

Record 7,  Textual support,  Spanish

Record number: 7, Textual support number: 1 DEF

Mineral [variedad de cuarzo que] es de color entre amarillo y pardo, con visos, y se usa como piedra ornamental.  1, record 7, Spanish, - ojo%20de%20tigre

Record 8,  Textual support,  English

Record number: 8, Textual support number: 1 DEF

A full green, chromium-bearing variety of beryl, used as a gemstone.  2, record 8, English, - emerald

Record number: 8, Textual support number: 1 CONT

Miarolitic pegmatites are an important source of gemstones such as beryl (emerald), topaz, and tourmaline.  4, record 8, English, - emerald

Record 8,  Textual support,  French

Record number: 8, Textual support number: 1 DEF

Variété noble de béryl, de couleur vert intense, chromifère ou vanadifère, de qualité gemme.  3, record 8, French, - %C3%A9meraude

Record number: 8, Textual support number: 1 CONT

Tout est gris au pays de l'or vert. Le graphite des montagnes colombiennes - celles où se nichent les précieuses veines d'émeraude - a déteint sur les cœurs et les mains des guaqueros.  2, record 8, French, - %C3%A9meraude

Record number: 8, Textual support number: 2 CONT

Les pegmatites miarolitiques sont une source importante de gemmes telles que le béryl (émeraudes), la topaze et la tourmaline.  4, record 8, French, - %C3%A9meraude

Record number: 8, Textual support number: 1 OBS

Étymologie : du grec «smaragdos».  3, record 8, French, - %C3%A9meraude

Record 8,  Textual support,  Spanish

Record number: 8, Textual support number: 1 DEF

Berilo verde.  1, record 8, Spanish, - esmeralda

Record 9,  Textual support,  English

Record number: 9, Textual support number: 1 DEF

A pink to red, transparent, lithian variety of tourmaline, prized as a gemstone.  2, record 9, English, - rubellite

Record 9,  Textual support,  French

Record number: 9, Textual support number: 1 DEF

Variété lithique de tourmaline, dont la couleur varie du rose au rouge pourpre, et qui est recherchée comme gemme.  2, record 9, French, - rubellite

Record number: 9, Textual support number: 1 CONT

Les tourmalines ferrifères sont noires, les magnésiennes vertes, ou brunes selon le cas, les lithiques toujours très claires, souvent roses, comme les magnifiques «rubellites» utilisées en bijouterie.  3, record 9, French, - rubellite

Record 9,  Textual support,  Spanish

Record number: 9, Textual support number: 1 OBS

Variedad de turmalina de color rojo.  1, record 9, Spanish, - rubelita

Record 10,  Textual support,  English

Record number: 10, Textual support number: 1 DEF

A pink translucent variety of beryl containing caesium, which is prized as a gemstone.  3, record 10, English, - morganite

Record 10,  Textual support,  French

Record number: 10, Textual support number: 1 DEF

Variété rose de béryl, contenant du césium.  3, record 10, French, - morganite

Record 10,  Textual support,  Spanish

Record number: 10, Textual support number: 1 DEF

Variedad de berilo de color rosado [...]  1, record 10, Spanish, - morganita

Record number: 10, Textual support number: 1 OBS

[La morganita] es una piedra preciosa.  1, record 10, Spanish, - morganita

Record 11,  Textual support,  English

Record number: 11, Textual support number: 1 DEF

Applied to any gemstone which, when cut cabochon, exhibits under a single, strong point source, a sharp, well-defined light band, line or streak of white light across the dome of the stone, which moves as the stone is turned about.  2, record 11, English, - cat%26rsquo%3Bs%2Deye

Record number: 11, Textual support number: 1 OBS

The term "cat’s-eye" refers to the optical phenomenon of chatoyancy. Gemstones displaying chatoyancy must be described by their mineral name or variety followed by the suffix "cat’s-eye".  3, record 11, English, - cat%26rsquo%3Bs%2Deye

Record number: 11, Textual support number: 1 PHR

Enstatite cat’s-eye.  4, record 11, English, - cat%26rsquo%3Bs%2Deye

Record 11,  Textual support,  French

Record number: 11, Textual support number: 1 DEF

Se dit [...] pour les variétés de gemmes chatoyantes [...] dont le nom doit précéder l'appellation «œil-de-chat».  1, record 11, French, - %26oelig%3Bil%2Dde%2Dchat

Record number: 11, Textual support number: 1 CONT

La désignation «œil de chat» désigne un phénomène optique de chatoiement. Les pierres présentant cette caractéristique doivent être désignées par leur nom de minéral suivi de la mention «œil de chat».  2, record 11, French, - %26oelig%3Bil%2Dde%2Dchat

Record number: 11, Textual support number: 1 PHR

Quartz œil-de-chat.  1, record 11, French, - %26oelig%3Bil%2Dde%2Dchat

Record 11,  Textual support,  Spanish

Record 12,  Textual support,  English

Record number: 12, Textual support number: 1 DEF

An altered igneous rock that is usually opaque with green, black, pink, and white flecks and is usually used as a gemstone.  1, record 12, English, - unakite

Record 12,  Textual support,  French

Record 12,  Textual support,  Spanish

Record 13,  Textual support,  English

Record number: 13, Textual support number: 1 DEF

A pale amethyst gemstone penetrated by needles of goethite.  1, record 13, English, - onegite

Record 13,  Textual support,  French

Record 13,  Textual support,  Spanish

Record 14,  Textual support,  English

Record number: 14, Textual support number: 1 DEF

A colourless variety of tourmaline.  2, record 14, English, - achroite

Record number: 14, Textual support number: 1 CONT

The tourmaline gemstone family is extremely multicoloured and the fact that there is a colourless variety, the achroite, is known almost only to collectors. Its use in jewellery making is extremely rare because there is too much competition from other colourless gemstones. Rock crystal or quartz dominates the lower end of the market while at the top end the diamond is the undisputed king of gemstones.  3, record 14, English, - achroite

Record 14,  Textual support,  French

Record number: 14, Textual support number: 1 DEF

Variété gemme de tourmaline incolore.  3, record 14, French, - achro%C3%AFte

Record 14,  Textual support,  Spanish

Record 15,  Textual support,  English

Record number: 15, Textual support number: 1 DEF

A mineral that consists of a brittle silicate of beryllium and aluminum in pale yellow, green, or blue prismatic crystals and is used especially as a gemstone.  2, record 15, English, - euclase

Record number: 15, Textual support number: 1 OBS

Chemical formula: BeAlSiO₄(OH)  3, record 15, English, - euclase

Record 15,  Textual support,  French

Record number: 15, Textual support number: 1 DEF

Minéral (silicate naturel d'aluminium et de béryl) du système cristallin monoclinique, incolore, bleu pâle ou gris, d'aspect vitreux.  2, record 15, French, - euclase

Record number: 15, Textual support number: 1 CONT

L'euclase est transparente à translucide. [...] En cristaux prismatiques surchargés de facettes terminales, l'euclase est très recherchée comme gemme.  3, record 15, French, - euclase

Record number: 15, Textual support number: 1 OBS

Formule chimique : BeAlSiO₄(OH)  4, record 15, French, - euclase

Record 15,  Textual support,  Spanish

Record number: 15, Textual support number: 1 DEF

Silicato hidratado de aluminio y berilio [...], que cristaliza en el sistema monoclínico; es un mineral verdoso o azulino, de brillo vítreo y fractura concoidea.  1, record 15, Spanish, - euclasa

Record number: 15, Textual support number: 1 OBS

Fórmula química: BeAlSiO₄(OH)  2, record 15, Spanish, - euclasa

Record 16,  Textual support,  English

Record number: 16, Textual support number: 1 DEF

A deep violet-red garnet... found in metamorphic rocks and used as a gemstone.  8, record 16, English, - almandine

Record number: 16, Textual support number: 1 CONT

Almandine ... usually shows faces of the dedecahedron or the trapezohedron ...  9, record 16, English, - almandine

Record number: 16, Textual support number: 1 OBS

Almandine, or almandite ... is frequently cut with a convex face, or en cabochon, and is then known as carbuncle.  10, record 16, English, - almandine

Record number: 16, Textual support number: 2 OBS

Carbuncle refers to any deep red garnet, usually pyrope (but also almandine) cut into a cabochon. This is an ancient term and is rarely used anymore.  11, record 16, English, - almandine

Record number: 16, Textual support number: 3 OBS

Almandite, sometimes called almandine, is the modern gem known as carbuncle(though originally almost any red gemstone was known by this name). The term "carbuncle" is derived from the Latin meaning "little spark. "  12, record 16, English, - almandine

Record number: 16, Textual support number: 4 OBS

almandine, almandite: Etymology: Possibly from the ancient locality Alabanda in Asia minor.  13, record 16, English, - almandine

Record number: 16, Textual support number: 5 OBS

almandine-rich garnet: term used at Natural Resources Canada - Earth Sciences Sector.  13, record 16, English, - almandine

Record number: 16, Textual support number: 6 OBS

Chemical formula: Fe₃Al₂(SiO₄)₃ or FeAl₂Si₃O₁₂ or (SiO₄)₃Fe₃Al₂  13, record 16, English, - almandine

Record 16,  Textual support,  French

Record number: 16, Textual support number: 1 DEF

Grenat alumino-ferreux [...], rouge, cubique, souvent cristallisé en rhombododécaèdre, et fréquent dans les micaschistes et dans certaines aplites.  2, record 16, French, - almandin

Record number: 16, Textual support number: 1 CONT

L'almandin forme avec le pyrope une série continue par remplacement du fer par le magnésium. Comme tous les autres grenats, il cristallise en dodécaèdres réguliers ou en icositétraèdres [...] L'almandin est recherché pour être taillé comme gemme et il est fort probablement l'«escarboucle du Moyen Âge.»  7, record 16, French, - almandin

Record number: 16, Textual support number: 1 OBS

almandin [...] (ou almandine) : [de Alabanda, en Asie Mineure]  8, record 16, French, - almandin

Record number: 16, Textual support number: 2 OBS

[...] l'almandin [...], qui en pierre précieuse est l'escarboucle; [...]  8, record 16, French, - almandin

Record number: 16, Textual support number: 3 OBS

escarboucle : terme donné au Moyen Âge aux pierres rouges principalement au grenat almandin rouge.  9, record 16, French, - almandin

Record number: 16, Textual support number: 4 OBS

grenat almandin : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.  10, record 16, French, - almandin

Record number: 16, Textual support number: 5 OBS

Formule chimique : (SiO₄)3Fe₃Al₂ ou FeAl₂Si₃O₁₂ ou (SiO₄)₃Fe₃Al₂  10, record 16, French, - almandin

Record 16,  Textual support,  Spanish

Record number: 16, Textual support number: 1 DEF

Granate de naturaleza aluminicoférrica [...]; cristaliza en el sistema cúbico, formando dodecaedros romboidales.  1, record 16, Spanish, - almandina

Record number: 16, Textual support number: 1 OBS

Fórmula química: Fe₃Al₂(SiO₄)₃ o FeAl₂Si₃O₁₂ o (SiO₄)3Fe₃Al₂  3, record 16, Spanish, - almandina

Record 17,  Textual support,  English

Record number: 17, Textual support number: 1 DEF

Quartz cut to imitate diamond.  2, record 17, English, - rhinestone

Record number: 17, Textual support number: 2 DEF

A coloured(sometimes multicoloured) glass gemstone simulant.  3, record 17, English, - rhinestone

Record number: 17, Textual support number: 1 CONT

Ladies plated rings, some set with rhinestone.  4, record 17, English, - rhinestone

Record number: 17, Textual support number: 1 OBS

A somewhat meaningless word. It seems to have first meant rock crystal. Later it was used for glass imitation stones with variegated colours .... In America and Canada it usually means colourless paste. It may also still be used to mean rock crystal.  5, record 17, English, - rhinestone

Record 17,  Textual support,  French

Record number: 17, Textual support number: 1 DEF

Variété colorée de quartz.  4, record 17, French, - faux%20brillant

Record 17,  Textual support,  Spanish

Record 18,  Textual support,  English

Record number: 18, Textual support number: 1 DEF

Transparent colourless quartz ...  4, record 18, English, - rock%20crystal

Record number: 18, Textual support number: 1 OBS

Rock crystal is the name given to all clear colorless quartz. It is widely used as a popular ornamental stone and is also used as a gemstone... The most common use for rock crystal is in ornamental carvings. A well known ornamental carving for rock crystal is the crystal ball of fortune-telling fame.  6, record 18, English, - rock%20crystal

Record number: 18, Textual support number: 2 OBS

Rhine diamond, Cornish diamond, Alaska diamond: meliorative terms to be avoided.  7, record 18, English, - rock%20crystal

Record number: 18, Textual support number: 3 OBS

Cornish diamond: A quartz crystal from Cornwall.  8, record 18, English, - rock%20crystal

Record 18,  Textual support,  French

Record number: 18, Textual support number: 1 DEF

Quartz incolore, montrant des faces cristallines bien développées.  2, record 18, French, - cristal%20de%20roche

Record 18,  Textual support,  Spanish

Record 19,  Textual support,  English

Record number: 19, Textual support number: 1 DEF

A blue variety of cordierite prized as a gemstone and occurring in waterworn river gravels.  1, record 19, English, - water%20sapphire

Record 19,  Textual support,  French

Record number: 19, Textual support number: 1 DEF

Variété bleue de cordiérite, fréquente dans les alluvions, notamment à Ceylan.  1, record 19, French, - saphir%20d%27eau

Record 19,  Textual support,  Spanish

Record 20,  Textual support,  English

Record number: 20, Textual support number: 1 DEF

A colorless or yellowish rhombohedral mineral which consists of a natural beryllium silicate occurring in granite pegmatites and used as a gemstone.  3, record 20, English, - phenakite

Record number: 20, Textual support number: 1 CONT

Phenakite.- ... The prismatic crystals often resemble those of quartz, but quartz is striated horizontally on the prisms whereas phenakite is striated vertically.  4, record 20, English, - phenakite

Record number: 20, Textual support number: 1 OBS

Named for a Greek word for "to deceive," because it was long confused with quartz.  4, record 20, English, - phenakite

Record number: 20, Textual support number: 2 OBS

Chemical formula: Be₂SiO₄  3, record 20, English, - phenakite

Record 20,  Textual support,  French

Record number: 20, Textual support number: 1 DEF

Minéral du système rhomboédrique constitué de silicate de béryllium se présentant en prismes allongés rappelant le quartz ou en cristaux lenticulaires; incolore ou jaunâtre; souvent taillé comme gemme.  2, record 20, French, - ph%C3%A9nacite

Record number: 20, Textual support number: 1 OBS

Étymologie : Vient du grec phenax qui signifie «trompeur», à cause de la confusion avec le quartz.  2, record 20, French, - ph%C3%A9nacite

Record number: 20, Textual support number: 2 OBS

Formule chimique : Be₂SiO₄  2, record 20, French, - ph%C3%A9nacite

Record 20,  Textual support,  Spanish

Record number: 20, Textual support number: 1 OBS

Fórmula química: Be₂SiO₄  2, record 20, Spanish, - fenacita

Record 21,  Textual support,  English

Record number: 21, Textual support number: 1 DEF

A very dark brown to black opaque variety [of smoky quartz].  2, record 21, English, - morion

Record number: 21, Textual support number: 1 OBS

Used as a gemstone.  3, record 21, English, - morion

Record number: 21, Textual support number: 2 OBS

Morion is the German, Danish, Spanish and Polish synonym for smoky quartz. The name is from a misreading of mormorion in Pliny the Elder.  2, record 21, English, - morion

Record 21,  Textual support,  French

Record number: 21, Textual support number: 1 DEF

Variété de quartz fumé brun foncé à noir.  2, record 21, French, - morion

Record 21,  Textual support,  Spanish

Record 22,  Textual support,  English

Record number: 22, Textual support number: 1 CONT

Burbankite is a rare strontium and cerium carbonate mineral. Burbankite is one of many rare minerals that come from the famous mineral locality, Mont Saint-Hilaire, Quebec, Canada. Some specimens have been cut from there and in fact a large 6. 62 carat orange stone is the North American record holder for this species. But burbankite is far too rare to be considered a mainstream gemstone. Its crystal habit is reminiscent of apatite although its color and size is generally quite different. Burbankite's crystals are typically quite small but well formed and make good micromounts.  2, record 22, English, - burbankite

Record number: 22, Textual support number: 1 OBS

Chemical formula: (Na,Ca,Sr,Ba,Ce)₆(CO₃)₅  3, record 22, English, - burbankite

Record 22,  Textual support,  French

Record number: 22, Textual support number: 1 DEF

Minéral (carbonate) du système cristallin hexagonal, se présentant en masses clivables jaunes à blanc grisâtre.  2, record 22, French, - burbankite

Record number: 22, Textual support number: 1 OBS

Formule chimique : (Na,Ca,Sr,Ba,Ce)₆(CO₃)₅  3, record 22, French, - burbankite

Record 22,  Textual support,  Spanish

Record 23,  Textual support,  English

Record number: 23, Textual support number: 1 DEF

... a translucent violet blue gemstone [which] glows as though lit from within.  4, record 23, English, - blue%20chalcedony

Record number: 23, Textual support number: 1 OBS

[Do not confuse with] sapphirine, [which is] a name sometimes incorrectly applied to blue chalcedony.  5, record 23, English, - blue%20chalcedony

Record number: 23, Textual support number: 2 OBS

blue quartz: term used at Natural Resources Canada - Earth Sciences Sector.  6, record 23, English, - blue%20chalcedony

Record 23,  Textual support,  French

Record number: 23, Textual support number: 1 OBS

Ne pas confondre avec saphirine, qui est une appellation incorrecte pour désigner la calcédoine bleue.  4, record 23, French, - calc%C3%A9doine%20bleue

Record number: 23, Textual support number: 2 OBS

quartz bleu : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.  4, record 23, French, - calc%C3%A9doine%20bleue

Record 23,  Textual support,  Spanish

Record 24,  Textual support,  English

Record number: 24, Textual support number: 1 DEF

A white to light-green monoclinic mineral of the pyroxene group occurring in metamorphic rocks.  3, record 24, English, - diopside

Record number: 24, Textual support number: 1 OBS

This mineral is used as a gemstone and as a refractory.  4, record 24, English, - diopside

Record number: 24, Textual support number: 2 OBS

Chemical formula: CaMgSi₂O₆  3, record 24, English, - diopside

Record 24,  Textual support,  French

Record number: 24, Textual support number: 1 DEF

Minéral (clinopyroxène magnésien et calcique) du système cristallin monoclinique, [formant] deux séries minérales : avec l'hédenbergite et avec la johannsenite.  2, record 24, French, - diopside

Record number: 24, Textual support number: 1 OBS

Formule chimique : CaMgSi₂O₆  3, record 24, French, - diopside

Record 24,  Textual support,  Spanish

Record number: 24, Textual support number: 1 DEF

Metasilicato de magnesio, calcio y hierro [...] que cristaliza en el sistema monoclínico; es un piroxeno transparente, a veces incoloro, otras veces verde.  1, record 24, Spanish, - di%C3%B3psido

Record number: 24, Textual support number: 1 OBS

Fórmula química: CaMgSi₂O₆  2, record 24, Spanish, - di%C3%B3psido

Record 25,  Textual support,  English

Record number: 25, Textual support number: 1 DEF

A colorless, transparent, zeolite mineral [occurring] massive or in cubes, and... used as a gemstone.  3, record 25, English, - pollucite

Record number: 25, Textual support number: 1 CONT

The Tanco pegmatite ... contains the largest known concentration of pollucite.  4, record 25, English, - pollucite

Record number: 25, Textual support number: 1 OBS

Chemical formula: (Cs,Na)₂(Al₂Si₄)O₁₂•H₂O  5, record 25, English, - pollucite

Record 25,  Textual support,  French

Record number: 25, Textual support number: 1 DEF

Minéral (tectosilicate de césium) du système cristallin cubique, incolore, du groupe des zéolites.  3, record 25, French, - pollucite

Record number: 25, Textual support number: 1 CONT

[...] la pegmatite de Tanco contient la plus vaste concentration connue de pollucite.  4, record 25, French, - pollucite

Record number: 25, Textual support number: 1 OBS

Étymologie : Allusion au fait que, dans l'Antiquité, Pollux, frère de Castor, accompagnait toujours celui-ci (la pollucite a été découverte à l'île d'Elbe avec la castorite (Castor), maintenant appelée pétalite).  5, record 25, French, - pollucite

Record number: 25, Textual support number: 2 OBS

Formule chimique : (Cs,Na)₂(Al₂Si₄)O₁₂•H₂O  6, record 25, French, - pollucite

Record 25,  Textual support,  Spanish

Record 26,  Textual support,  English

Record number: 26, Textual support number: 1 DEF

A light to very dark brown variety of quartz sometimes used as a semiprecious gemstone.  2, record 26, English, - smoky%20quartz

Record number: 26, Textual support number: 1 CONT

Cairngorm is a yellow-brown type of smoky quartz that is often used in traditional Celtic jewelry.  4, record 26, English, - smoky%20quartz

Record number: 26, Textual support number: 1 OBS

smoky topaz: a misleading name for smoky quartz.  3, record 26, English, - smoky%20quartz

Record number: 26, Textual support number: 2 OBS

smoky quartz: term used at Natural Resources Canada - Earth Sciences Sector.  5, record 26, English, - smoky%20quartz

Record 26,  Textual support,  French

Record number: 26, Textual support number: 1 DEF

Variété de quartz de couleur brun clair fumé à brun foncé.  4, record 26, French, - quartz%20enfum%C3%A9

Record number: 26, Textual support number: 1 CONT

[Le quartz] est, en général, incolore et complètement transparent, mais peut prendre des colorations des plus variées et devenir translucide et même opaque. Il y a lieu de citer [...] le «quartz enfumé», noir (Uri, Suisse).  5, record 26, French, - quartz%20enfum%C3%A9

Record number: 26, Textual support number: 1 OBS

quartz enfumé : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.  6, record 26, French, - quartz%20enfum%C3%A9

Record 26,  Textual support,  Spanish

Record number: 26, Textual support number: 1 CONT

A veces [el cuarzo] tiene un color pardo negruzco (cuarzo ahumado) [...]  1, record 26, Spanish, - cuarzo%20ahumado

Record 27,  Textual support,  English

Record number: 27, Textual support number: 1 DEF

A iron oxide used both as a gemstone and in powdered form as a polishing abrasive(jeweller's rouge).  4, record 27, English, - hematite

Record number: 27, Textual support number: 1 CONT

Hematite occurs in splendent, metallic-looking, steel-gray or iron-black rhombohedral crystals, in reniform masses or fibrous aggregates, or in deep-red or red-brown earthy forms; it has a distinctive cherry-red to reddish-brown streak ... Hematite is the principal ore of iron.  2, record 27, English, - hematite

Record number: 27, Textual support number: 1 OBS

Because of its mamillary contours it is also known as kidney stone. ... Trigonal. ... Opaque, reddish-black. Occurrence: Elba, England.  4, record 27, English, - hematite

Record number: 27, Textual support number: 2 OBS

Chemical formula: Fe₂O₃  5, record 27, English, - hematite

Record 27,  Textual support,  French

Record number: 27, Textual support number: 1 DEF

Oxyde ferrique naturel [...]  2, record 27, French, - h%C3%A9matite

Record number: 27, Textual support number: 1 CONT

Hématite. [...] Cet important minerai de fer est très répandu à la surface de la terre. L'ocre rouge est la variété terreuse, l'oligiste, ou fer spéculaire, est la variété cristallisée [...]  3, record 27, French, - h%C3%A9matite

Record number: 27, Textual support number: 1 OBS

Formule chimique : Fe₂O₃  4, record 27, French, - h%C3%A9matite

Record 27,  Textual support,  Spanish

Record number: 27, Textual support number: 1 OBS

Fórmula química: Fe₂O₃  2, record 27, Spanish, - hematita

Record 28,  Textual support,  English

Record number: 28, Textual support number: 1 DEF

The green gemstone variety of the mineral andradite.  3, record 28, English, - demantoid

Record number: 28, Textual support number: 1 OBS

The gemstone Uralian emerald is also known as demantoid. In spite of its name, it is not a kind of emerald, but a type of garnet. The stone is [a] mineral andradite and is rich in both calcium and iron. The chemical formula for Uralian emerald is Ca₃Fe₂(SiO₄) ₃. On the Moh's Hardness scale, this gem scores a 6. 5. Most stones are very small in size, and gems larger that 1 gram are highly sought after.  2, record 28, English, - demantoid

Record 28,  Textual support,  French

Record number: 28, Textual support number: 1 DEF

Variété verte de l'andradite.  3, record 28, French, - d%C3%A9manto%C3%AFde

Record number: 28, Textual support number: 1 OBS

Le démantoïde [...] produit des éclats de lumière caractéristiques, très beaux et intenses, avec une dispersion des rayons lumineux selon les différentes couleurs du spectre. En gemmologie, cette propriété est appelée «feux». C'est de cette caractéristique optique qu'il tire son nom de «démantoïde» qui signifie «ressemblant au diamant» [...] Le démantoïde a été découvert en Russie où il est également appelé «émeraude de l'Oural».  3, record 28, French, - d%C3%A9manto%C3%AFde

Record 28,  Textual support,  Spanish

Record number: 28, Textual support number: 1 OBS

Variedad de granate cuyos cristales verdes se usan en joyería.  1, record 28, Spanish, - demantoide

Record 29,  Textual support,  English

Record number: 29, Textual support number: 1 DEF

A transparent to translucent glassy mineral, essentially aluminum beryllium silicate ... occurring in hexagonal prisms and constituting the chief source of beryllium.  2, record 29, English, - beryl

Record number: 29, Textual support number: 1 CONT

Beryl... is hexagonal... The mineral... is used as a gemstone under the names aquamarine(blue) and emerald(green). Beryl is the only common beryllium-bearing mineral...  3, record 29, English, - beryl

Record number: 29, Textual support number: 1 OBS

Chemical formula: Be₃Al₂Si₆O₁₈  4, record 29, English, - beryl

Record 29,  Textual support,  French

Record number: 29, Textual support number: 1 DEF

Cyclosilicate du système cristallin hexagonal, se présentant en prismes allongés et cannelés ou arrondis, à cassure conchoïdale ou inégale, à polychroïsme parfois marqué, de couleur vert pâle.  2, record 29, French, - b%C3%A9ryl

Record number: 29, Textual support number: 1 CONT

La couleur sert de base à la définition des diverses variétés de béryl : l'aigue-marine, bleu verdâtre et transparente, la morganite ou béryl rose; l'émeraude verte, l'héliodore jaune.  4, record 29, French, - b%C3%A9ryl

Record number: 29, Textual support number: 2 CONT

Les béryls sont [...] des minéraux de pegmatites dont les variétés pures sont des pierres précieuses estimées : l'émeraude, la plus chère des gemmes, est un béryl chromifère. L'aigue-marine, la morganite sont d'autres variétés.  5, record 29, French, - b%C3%A9ryl

Record number: 29, Textual support number: 1 OBS

Formule chimique : Be₃Al₂Si₆O₁₈  6, record 29, French, - b%C3%A9ryl

Record 29,  Textual support,  Spanish

Record number: 29, Textual support number: 1 DEF

Silicato doble de aluminio y berilio.  1, record 29, Spanish, - berilo

Record number: 29, Textual support number: 1 OBS

Fórmula química: Be₃Al₂Si₆O₁₈  2, record 29, Spanish, - berilo

Record 30,  Textual support,  English

Record number: 30, Textual support number: 1 DEF

A mineral: MgAl₂O₄.  2, record 30, English, - spinel

Record number: 30, Textual support number: 1 OBS

The magnesium may be replaced in part by ferrous iron, and the aluminum by ferric iron. Spinel has great hardness, usually forms octahedral crystals(isometric system), varies widely in color(from colorless... to black), and is used as a gemstone. It occurs typically as products of contact metamorphism of impure dolomitic limestones, and less commonly as an accessory mineral of basic igneous rocks; it also occurs in alluvial deposits.  2, record 30, English, - spinel

Record 30,  Textual support,  French

Record number: 30, Textual support number: 1 DEF

[...] aluminate de magnésium du système cristallin cubique, se présentant en cristaux octaédriques souvent maclés, à éclat vitreux.  2, record 30, French, - spinelle

Record number: 30, Textual support number: 1 OBS

Comme [...] les spinelles au sens large, ce sont des corps à faciès octaédriques quand ils sont bien cristallisés; [...] Les alumineux, ceux de cette famille, sont généralement transparents, souvent colorés [...], durs, d = 7,5 à 8, et de densité de 3,55 [...], indice variant autour de 1,8 donnant un bel éclat vitreux.  3, record 30, French, - spinelle

Record number: 30, Textual support number: 2 OBS

Formule chimique : MgAl₂O₄  4, record 30, French, - spinelle

Record 30,  Textual support,  Spanish

Record number: 30, Textual support number: 1 DEF

Aluminato de magnesio [...] que cristaliza en el sistema octaédrico; sus cristales, de brillo vítreo [...] tienen aplicaciones en joyería [...].  1, record 30, Spanish, - espinela

Record 31,  Textual support,  English

Record number: 31, Textual support number: 1 DEF

A solid measure of the volume of earth "in situ", i.e. moved from a bank (before excavation or blasting).  5, record 31, English, - bank%20cubic%20metre

Record number: 31, Textual support number: 1 OBS

This refers to the volume of earth as it exists in a natural bank before excavation.  3, record 31, English, - bank%20cubic%20metre

Record number: 31, Textual support number: 1 CONT

... the rough gemstone value is $159 per bank cubic meter(material measured before being mined).  4, record 31, English, - bank%20cubic%20metre

Record number: 31, Textual support number: 2 OBS

[Opposed to] "loose cubic metre" ("LCM", or "Lm³"), [which] refers to the volume of earth after it is removed from the bank or is first placed in fill [and which,] once it is removed from the bank, ... bulks or increases in volume. Also related to the concept of "compacted cubic metre" ("cm³"), [which] refers to the volume of compacted earth embankment [and] represents the final earthworks output of the earth-placement operation.  3, record 31, English, - bank%20cubic%20metre

Record 31,  Textual support,  French

Record number: 31, Textual support number: 1 OBS

Mesure avant extraction, c'est-à-dire du volume de morts-terrains trouvés à l'état naturel dans un banc.  1, record 31, French, - m%C3%A8tre%20cube%20en%20place

Record number: 31, Textual support number: 1 CONT

coefficient de recouvrement : Ratio du volume de morts-terrains déplacés par rapport à la quantité de charbon produit, mesuré en m³ (banc) de morts-terrains par tonne de charbon produit. Un faible coefficient de recouvrement constitue un avantage opérationnel puisque l'on doit enlever moins de morts-terrains avant d'atteindre le charbon brut; [...]  2, record 31, French, - m%C3%A8tre%20cube%20en%20place

Record number: 31, Textual support number: 2 OBS

mètre cube en place : Équivalent obtenu auprès d'un professeur, Centre de géotechnique et d'exploitation du sous-sol, et du directeur du CESECO (Centre d'études supérieures pour l'exploitation des carrières et des mines à ciel ouvert), École des mines de Paris.  1, record 31, French, - m%C3%A8tre%20cube%20en%20place

Record 31,  Textual support,  Spanish

Record 32,  Textual support,  English

Record number: 32, Textual support number: 1 DEF

[The] intensity of the internal and external reflections of white light from the crown of a polished diamond or other gemstone.  3, record 32, English, - brilliance

Record number: 32, Textual support number: 1 CONT

The proportions, the relationship between the various parts of the stone, determine the fire and brilliance of the diamond. If the proportions are not optimal, undesirable visual effects may occur.  4, record 32, English, - brilliance

Record 32,  Textual support,  French

Record number: 32, Textual support number: 1 DEF

Qualité des réflexions internes et externes de la lumière blanche par la couronne d'un diamant taillé.  2, record 32, French, - brillance

Record number: 32, Textual support number: 1 CONT

Les proportions ou rapports internes entre les différentes parties du diamant déterminent le feu et la brillance de la pierre. Si les proportions ne sont pas idéales, il peut apparaître des effets visuels indésirables.  3, record 32, French, - brillance

Record 32,  Textual support,  Spanish

Record 33,  Textual support,  English

Record number: 33, Textual support number: 1 DEF

The outer circumference of a polished gemstone which separates the top, or crown, from the base, or pavilion.  2, record 33, English, - girdle

Record 33,  Textual support,  French

Record number: 33, Textual support number: 1 DEF

Bord d'une gemme taillée autre que le diamant, situé entre la couronne et la culasse.  3, record 33, French, - feuilletis

Record number: 33, Textual support number: 1 OBS

rondiste : terme utilisé uniquement pour les diamants.  4, record 33, French, - feuilletis

Record 33,  Textual support,  Spanish

Record 34,  Textual support,  English

Record number: 34, Textual support number: 1 DEF

A style of setting a gemstone in a finger ring, the stone being set in a square or rectangular metal frame and held in place by... the metal over edge... to secure it.  1, record 34, English, - box%20setting

Record number: 34, Textual support number: 1 CONT

Box settings are commonly used with cabochon cut stones which do not have light entering the base of the stone.  1, record 34, English, - box%20setting

Record 34,  Textual support,  French

Record number: 34, Textual support number: 1 DEF

Fixation d'une gemme taillée sur un bijou à l'aide d'une lamelle métallique qui entoure complètement son feuilletis (ou son rondiste).  1, record 34, French, - serti%20clos

Record number: 34, Textual support number: 1 OBS

La pierre est entièrement entourée par le métal.  1, record 34, French, - serti%20clos

Record 34,  Textual support,  Spanish

Record 35,  Textual support,  English

Record number: 35, Textual support number: 1 DEF

A generic name for a group of mineral silicates that are isometric in crystallization;... use as a gemstone or as an abrasive.  2, record 35, English, - garnet

Record number: 35, Textual support number: 1 CONT

Species of garnet: almandine (purplish-red); andradite; ... grossular; ... pyrope (blood-red); spessartite; ... uvarovite (emerald-green) ...  3, record 35, English, - garnet

Record 35,  Textual support,  French

Record number: 35, Textual support number: 1 DEF

Nom générique donné à une famille très homogène de silicates d'un métal trivalent (aluminium, fer, chrome) et d'un métal bivalent (calcium, magnésium, fer, manganèse) formant une série isomorphe. Ils cristallisent communément en dodécaèdre rhomboïdal ou en trapézoèdre du système cubique.  2, record 35, French, - grenat

Record number: 35, Textual support number: 1 CONT

Les grenats forment un groupe de minéraux à partir desquels on obtient non seulement la gemme rouge bien connue, mais aussi de superbes spécimens jaunes, orangés, verts, très appréciés. Les espèces pures ... sont les suivantes : - le pyrope : silicate d'aluminium et magnésium; - l'almandine : silicate d'aluminium et fer; - la spessartite : silicate d'aluminium et manganèse; - la grossulaire : silicate d'aluminium et calcium; - l'andradite : silicate de fer trivalent et calcium; - l'uvarovite : silicate de chrome trivalent et calcium.  3, record 35, French, - grenat

Record number: 35, Textual support number: 1 OBS

Employé seul, le mot grenat est synonyme de pyrope-almandin; les autres termes de la famille sont désignés ou bien par leur nom spécifique, parfois précédé du mot grenat, ou bien par le mot grenat suivi d'une indication de couleur.  4, record 35, French, - grenat

Record 35,  Textual support,  Spanish

Record number: 35, Textual support number: 1 CONT

Los granates cristalizan en el sistema cúbico y suelen formar dodecaedros romboideos o bien trapezoedros. La principal variedad usada en joyería tiene el color rojo característico de la granada [...]  1, record 35, Spanish, - granate

Record 36,  Textual support,  English

Record number: 36, Textual support number: 1 DEF

A variation of the channel setting, usually used for wedding bands or designer rings. In the bar setting, thin metal bars are placed between each gemstone on a band to hold them securely in place.  1, record 36, English, - bar%20setting

Record 36,  Textual support,  French

Record number: 36, Textual support number: 1 CONT

Serti barrette : dans ce sertissage, l'effet «barrette» est dû à la bande transversale d'or qui sépare chaque brillant. La barrette est ciselée ou non, mais l'avantage est de pouvoir «découper» sur le côté de la bague, la forme ronde de la pierre et ainsi donner un volume à volutes de côté.  3, record 36, French, - serti%20barrette

Record 36,  Textual support,  Spanish

Record 37,  Textual support,  English

Record number: 37, Textual support number: 1 DEF

In the mineralogical sense, one of the orders of minerals used by Mohs, distinguished by their hardness - enough to scratch quartz - transparency, non-metallic luster, but generally brilliant and beautiful.  3, record 37, English, - gem

Record number: 37, Textual support number: 1 CONT

Miarolitic pegmatites are an important source of gemstones such as beryl (emerald), topaz, and tourmaline.  2, record 37, English, - gem

Record 37,  Textual support,  French

Record number: 37, Textual support number: 1 DEF

Minéral considéré comme une pierre précieuse.  2, record 37, French, - gemme

Record number: 37, Textual support number: 1 CONT

Les gemmes possèdent généralement un éclat vif (dit adamantin), une grande réfringence et une grande dureté.  2, record 37, French, - gemme

Record number: 37, Textual support number: 2 CONT

Les pegmatites miarolitiques sont une source importante de gemmes telles que le béryl (émeraudes), la topaze et la tourmaline.  3, record 37, French, - gemme

Record 37,  Textual support,  Spanish

Record 38,  Textual support,  English

Record number: 38, Textual support number: 1 DEF

A transparent to translucent, purple to pale-violet variety of quartz common as a semiprecious gemstone.  1, record 38, English, - amethyst

Record number: 38, Textual support number: 1 OBS

The color results from a hole defect associated with ferric iron substitution for silicon.  1, record 38, English, - amethyst

Record 38,  Textual support,  French

Record number: 38, Textual support number: 1 DEF

Quartz pourpre ou violet utilisé en bijouterie.  3, record 38, French, - am%C3%A9thyste

Record number: 38, Textual support number: 1 CONT

[Le quartz] est, en général, incolore et complètement transparent, mais peut prendre des colorations des plus variées et devenir translucide et même opaque. Il y a lieu de citer [...] l'«améthyste», violet (Brésil, Oural) [...]  2, record 38, French, - am%C3%A9thyste

Record number: 38, Textual support number: 1 OBS

La couleur est due à des traces de manganèse.  3, record 38, French, - am%C3%A9thyste

Record number: 38, Textual support number: 2 OBS

améthyste : [...] dérive d'un mot grec dont la traduction est «qui préserve de l'ivresse».  4, record 38, French, - am%C3%A9thyste

Record 38,  Textual support,  Spanish

Record number: 38, Textual support number: 1 DEF

Variedad de cuarzo en forma de cristales más o menos violáceos, cuyo tinte se atribuye a la presencia de ínfimas cantidades de óxido de manganeso.  1, record 38, Spanish, - amatista

Record 39,  Textual support,  English

Record number: 39, Textual support number: 1 DEF

A transparent blue variety of tourmaline occurring in Brazil and used as a gemstone.  1, record 39, English, - Brazilian%20sapphire

Record 39,  Textual support,  French

Record number: 39, Textual support number: 1 OBS

[...] tourmaline bleue.  1, record 39, French, - saphir%20du%20Br%C3%A9sil

Record 39,  Textual support,  Spanish

Record 40,  Textual support,  English

Record number: 40, Textual support number: 1 DEF

Any of several types of marks found on the surface of a gemstone but which do not penetrate it significantly.  5, record 40, English, - external%20characteristic

Record number: 40, Textual support number: 1 CONT

Clarity is the degree to which a stone is free from external marks called blemishes and internal features called inclusions.  4, record 40, English, - external%20characteristic

Record number: 40, Textual support number: 1 OBS

Surface blemishes: scratches, nicks, pits, abraded facet edges, extra facets and naturals.  4, record 40, English, - external%20characteristic

Record 40,  Textual support,  French

Record number: 40, Textual support number: 1 DEF

Imperfection à la surface du diamant.  4, record 40, French, - caract%C3%A9ristique%20externe

Record number: 40, Textual support number: 1 CONT

Un diamant jugé «sans impureté» n'aura pas de défauts de surface (caractéristiques externes) ni de défauts internes (inclusions).  5, record 40, French, - caract%C3%A9ristique%20externe

Record number: 40, Textual support number: 1 OBS

Caractéristiques externes : égrisures, ébréchures, petits creux, arêtes de facettes éraflées, fausses facettes et naturels.  5, record 40, French, - caract%C3%A9ristique%20externe

Record 40,  Textual support,  Spanish

Record 41,  Textual support,  English

Record number: 41, Textual support number: 1 DEF

The facet above the girdle of a cut gemstone.  3, record 41, English, - crown%20facet

Record number: 41, Textual support number: 1 CONT

Crossworkers: establish the mains, crown and pavilion facets to specific angles and indices in two steps: 1. blocking the diamond ... 2. lapping the diamond ...  4, record 41, English, - crown%20facet

Record 41,  Textual support,  French

Record number: 41, Textual support number: 1 DEF

Facette au-dessus du rondis d'une pierre taillée.  2, record 41, French, - facette%20de%20couronne

Record 41,  Textual support,  Spanish

Record 42,  Textual support,  English

Record number: 42, Textual support number: 1 DEF

The large central facet on the crown of a polished diamond [(or gemstone) ].  3, record 42, English, - table

Record number: 42, Textual support number: 1 CONT

... table: the primary facet that is used as a reference for all other facet angles; ...  4, record 42, English, - table

Record number: 42, Textual support number: 1 PHR

Closed, off-centre, oversized, sloping table.  5, record 42, English, - table

Record 42,  Textual support,  French

Record number: 42, Textual support number: 1 DEF

Grande facette supérieure de la couronne d'un diamant taillé [(ou d'une pierre taillée]) parallèle au rondiste.  2, record 42, French, - table

Record number: 42, Textual support number: 1 PHR

Table fermée, excentrée, étendue, inclinée.  3, record 42, French, - table

Record 42,  Textual support,  Spanish

Record 43,  Textual support,  English

Record number: 43, Textual support number: 1 DEF

A trade term for a cut and polished diamond or any other natural gemstone.  2, record 43, English, - stone

Record 43,  Textual support,  French

Record 43,  Textual support,  Spanish

Record 44,  Textual support,  English

Record number: 44, Textual support number: 1 DEF

That portion of a faceted gemstone below the girdle.  5, record 44, English, - pavilion

Record number: 44, Textual support number: 1 CONT

Both on the crown (the part above the girdle, i.e. the plane with the greatest diameter) as on the pavilion (the part under the girdle), 4 facets are first placed.  6, record 44, English, - pavilion

Record number: 44, Textual support number: 1 OBS

In North America and Britain, the portion of a fashioned stone below the girdle is called "pavilion." On European continent, the pavilion is the part above the girdle, the portion below being known as the culasse.  4, record 44, English, - pavilion

Record 44,  Textual support,  French

Record number: 44, Textual support number: 1 DEF

Partie du diamant taillé située au-dessous du rondiste.  4, record 44, French, - culasse

Record number: 44, Textual support number: 1 OBS

En anglais, ne pas confondre «pavilion», la culasse, avec «pavilion facets», les pavillons.  5, record 44, French, - culasse

Record 44,  Textual support,  Spanish

Record 45,  Textual support,  English

Record number: 45, Textual support number: 1 CONT

... Argyle stones represent only 7% of world production, as 95% of the diamonds mined are either industrial grade or poor quality gemstones.  1, record 45, English, - poor%20quality%20gemstone

Record 45,  Textual support,  French

Record number: 45, Textual support number: 1 CONT

[...] les pierres de la mine Argyle AK1 ne représentent que 7 % de la production mondiale puisque 95 % des pierres sont de qualité industrielle ou des gemmes de qualité pauvre.  1, record 45, French, - gemme%20de%20qualit%C3%A9%20pauvre

Record 45,  Textual support,  Spanish

Record 46,  Textual support,  English

Record number: 46, Textual support number: 1 DEF

An olive-green, grayish-green, or brown orthorhombic mineral [which] consists of the isomorphous solid-solution series forsterite-fayalite.  2, record 46, English, - olivine

Record number: 46, Textual support number: 1 CONT

Olivine is a common rock-forming mineral of basic, ultrabasic, and low-silica igneous rocks (gabbro, basalt, peridotite, dunite); it crystallizes early from a magma, weathers readily at the Earth’s surface, and metamorphoses to serpentine.  2, record 46, English, - olivine

Record number: 46, Textual support number: 1 OBS

The clear green variety is used as a gemstone under the name peridot.  3, record 46, English, - olivine

Record 46,  Textual support,  French

Record number: 46, Textual support number: 1 DEF

Variété de péridot se présentant en prismes trapus légèrement aplatis, ou en grains vert olive (jaune si titanifère), à éclat vitreux, sans clivage mais souvent craquelés, à cassures conchoïdales.  2, record 46, French, - olivine

Record number: 46, Textual support number: 1 CONT

Le terme péridot désigne un ensemble dont le seul représentant important est l'olivine, mélange en proportions variables d'un silicate de fer et d'un silicate de magnésium [...] C'est un minéral vert, orthorhombique, facilement attaqué par les agents atmosphériques et les acides [...] L'olivine est un élément symptomatique des roches basiques et ultrabasiques, pauvres en silice.  3, record 46, French, - olivine

Record number: 46, Textual support number: 1 OBS

En principe on peut avoir une série absolument continue entre la forstérite et la fayalite; on s'accorde à donner le nom d'olivine aux termes les plus banaux, qui possèdent en général la proportion Mg/Fe voisine de 3. La couleur est typiquement d'un beau vert-bouteille, les cristaux isolés sont assez exceptionnels [...] d varie de 6 à 6,5 [...] Pour les olivines, on citera n = 1,70, ce qui donne un bel éclat résineux à ce minéral.  4, record 46, French, - olivine