TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
GEM STONE [11 records]
Record 1 - internal organization data 2022-07-05
Record 1, English
Record 1, Subject field(s)
- Gemmology
- Jewellery
Record 1, Main entry term, English
- toadstone
1, record 1, English, toadstone
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- bufonite 2, record 1, English, bufonite
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
The toadstone, also known as bufonite(from Latin bufo, "toad"), is a mythical stone or gem that was believed historically to reside in the heads of toads.... Toadstones are in fact the button-like fossilised teeth of Lepidotes, an extinct genus of ray-finned fish from the Jurassic and Cretaceous periods... 3, record 1, English, - toadstone
Record 1, Key term(s)
- toad stone
Record 1, French
Record 1, Domaine(s)
- Gemmologie
- Joaillerie et bijouterie
Record 1, Main entry term, French
- crapaudine
1, record 1, French, crapaudine
correct, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- buffonite 2, record 1, French, buffonite
correct, feminine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Pierre provenant de la pétrification des dents fossiles du loup de mer. 3, record 1, French, - crapaudine
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2010-11-26
Record 2, English
Record 2, Subject field(s)
- Mineralogy
- Gemmology
Universal entry(ies) Record 2
Record 2, Main entry term, English
- demantoid
1, record 2, English, demantoid
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
- Uralian emerald 2, record 2, English, Uralian%20emerald
correct
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
The green gemstone variety of the mineral andradite. 3, record 2, English, - demantoid
Record number: 2, 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 2, English, - demantoid
Record 2, French
Record 2, Domaine(s)
- Minéralogie
- Gemmologie
Entrée(s) universelle(s) Record 2
Record 2, Main entry term, French
- démantoïde
1, record 2, French, d%C3%A9manto%C3%AFde
correct, masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
- demantoïde 2, record 2, French, demanto%C3%AFde
correct, masculine noun
- émeraude de l'Oural 2, record 2, French, %C3%A9meraude%20de%20l%27Oural
correct, feminine noun
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
Variété verte de l'andradite. 3, record 2, French, - d%C3%A9manto%C3%AFde
Record number: 2, 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 2, French, - d%C3%A9manto%C3%AFde
Record 2, Spanish
Record 2, Campo(s) temático(s)
- Mineralogía
- Estudio de las gemas
Entrada(s) universal(es) Record 2
Record 2, Main entry term, Spanish
- demantoide
1, record 2, Spanish, demantoide
correct, masculine noun
Record 2, Abbreviations, Spanish
Record 2, Synonyms, Spanish
Record 2, Textual support, Spanish
Record number: 2, Textual support number: 1 OBS
Variedad de granate cuyos cristales verdes se usan en joyería. 1, record 2, Spanish, - demantoide
Record 3 - internal organization data 2004-07-05
Record 3, English
Record 3, Subject field(s)
- Diamond Industry
Record 3, Main entry term, English
- polishing oil
1, record 3, English, polishing%20oil
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
- polisher’s oil 2, record 3, English, polisher%26rsquo%3Bs%20oil
Record 3, Textual support, English
Record number: 3, Textual support number: 1 DEF
An oil of varying viscosity used to aid polishing. 3, record 3, English, - polishing%20oil
Record number: 3, Textual support number: 1 CONT
Sometimes, polishing oil gets inside the gem, blackening the stone. These black traces in the "gardens" are difficult to clean even with acid. 4, record 3, English, - polishing%20oil
Record 3, French
Record 3, Domaine(s)
- Industrie diamantaire
Record 3, Main entry term, French
- huile de polissage
1, record 3, French, huile%20de%20polissage
correct, feminine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
- huile pour polir 2, record 3, French, huile%20pour%20polir
proposal, feminine noun
Record 3, Textual support, French
Record number: 3, Textual support number: 1 DEF
Huile de viscosité variable utilisée pour la taille. 3, record 3, French, - huile%20de%20polissage
Record 3, Spanish
Record 3, Textual support, Spanish
Record 4 - internal organization data 2004-04-23
Record 4, English
Record 4, Subject field(s)
- Gemmology
- Diamond Industry
Record 4, Main entry term, English
- gem quality
1, record 4, English, gem%20quality
correct
Record 4, Abbreviations, English
Record 4, Synonyms, English
Record 4, Textual support, English
Record number: 4, Textual support number: 1 DEF
A term describing rough gem material which has the weight, shape, clarity, and color to produce a polished stone suitable for use in jewelry. 2, record 4, English, - gem%20quality
Record number: 4, Textual support number: 1 CONT
Boart: An industrial diamond (not gem quality); used to prepare the scaife. 3, record 4, English, - gem%20quality
Record number: 4, Textual support number: 2 CONT
Diamond of gem quality. 4, record 4, English, - gem%20quality
Record 4, French
Record 4, Domaine(s)
- Gemmologie
- Industrie diamantaire
Record 4, Main entry term, French
- qualité gemme
1, record 4, French, qualit%C3%A9%20gemme
correct, feminine noun
Record 4, Abbreviations, French
Record 4, Synonyms, French
Record 4, Textual support, French
Record number: 4, Textual support number: 1 DEF
Signifie qu'un diamant brut présente les caractéristiques nécessaires, poids, forme, pureté et couleur, pour être utilisé en joaillerie. 2, record 4, French, - qualit%C3%A9%20gemme
Record number: 4, Textual support number: 1 CONT
Diamant de qualité gemme. 3, record 4, French, - qualit%C3%A9%20gemme
Record 4, Spanish
Record 4, Textual support, Spanish
Record 5 - internal organization data 2003-10-30
Record 5, English
Record 5, Subject field(s)
- Jewellery
- Gemmology
Record 5, Main entry term, English
- doublet
1, record 5, English, doublet
correct
Record 5, Abbreviations, English
Record 5, Synonyms, English
Record 5, Textual support, English
Record number: 5, Textual support number: 1 DEF
A gem composed of two pieces of crystal or semiprecious stone sometimes with a layer of colored glass between them. 1, record 5, English, - doublet
Record 5, French
Record 5, Domaine(s)
- Joaillerie et bijouterie
- Gemmologie
Record 5, Main entry term, French
- doublet
1, record 5, French, doublet
correct, masculine noun
Record 5, Abbreviations, French
Record 5, Synonyms, French
Record 5, Textual support, French
Record number: 5, Textual support number: 1 CONT
Les pierres fausses. [...] Les doublets (triplets, etc.) qui sont constitués, en général, par des collages de minéraux sur des composés chimiques colorés. 1, record 5, French, - doublet
Record 5, Spanish
Record 5, Campo(s) temático(s)
- Artículos de joyería
- Estudio de las gemas
Record 5, Main entry term, Spanish
- doblete
1, record 5, Spanish, doblete
correct, masculine noun
Record 5, Abbreviations, Spanish
Record 5, Synonyms, Spanish
Record 5, Textual support, Spanish
Record number: 5, Textual support number: 1 DEF
Piedra preciosa que se monta sobre un zócalo de cristal para doblar su espesor. 1, record 5, Spanish, - doblete
Record 6 - internal organization data 2001-08-14
Record 6, English
Record 6, Subject field(s)
- Gemmology
- Mineralogy
Record 6, Main entry term, English
- amazonite
1, record 6, English, amazonite
correct
Record 6, Abbreviations, English
Record 6, Synonyms, English
- amazonstone 1, record 6, English, amazonstone
correct
- amazon stone 2, record 6, English, amazon%20stone
- Amazon stone 3, record 6, English, Amazon%20stone
Record 6, Textual support, English
Record number: 6, Textual support number: 1 DEF
An apple-green, bright-green, or blue-green laminated variety of microcline, sometimes used as a gemstone. 4, record 6, English, - amazonite
Record number: 6, Textual support number: 2 DEF
A bright green laminated variety of microcline. Used more as an ornamental stone than as a gem stone. 5, record 6, English, - amazonite
Record 6, French
Record 6, Domaine(s)
- Gemmologie
- Minéralogie
Record 6, Main entry term, French
- amazonite
1, record 6, French, amazonite
correct, feminine noun
Record 6, Abbreviations, French
Record 6, Synonyms, French
- pierre des Amazones 2, record 6, French, pierre%20des%20Amazones
correct, feminine noun
- microcline vert 3, record 6, French, microcline%20vert
masculine noun
Record 6, Textual support, French
Record number: 6, Textual support number: 1 DEF
Variété de microcline brillante dont la couleur vert émeraude est due à certains défauts du réseau cristallin, et peut-être au remplacement d'ions O par F. 3, record 6, French, - amazonite
Record number: 6, Textual support number: 1 CONT
[...] la couleur verte de certains microclines de pegmatites («amazonite») a été attribuée à la présence de fer ferreux dans leur réseau, ou à celle d'autres éléments-traces. 4, record 6, French, - amazonite
Record 6, Spanish
Record 6, Textual support, Spanish
Record 7 - internal organization data 1997-06-19
Record 7, English
Record 7, Subject field(s)
- Jewellery
- Gemmology
Record 7, Main entry term, English
- intaglio
1, record 7, English, intaglio
correct
Record 7, Abbreviations, English
Record 7, Synonyms, English
- intaglio stone 2, record 7, English, intaglio%20stone
Record 7, Textual support, English
Record number: 7, Textual support number: 1 DEF
A gem or stone ornamented with a design or figure carved, incised, or engraved below the surface : opposed to cameo. 3, record 7, English, - intaglio
Record 7, Key term(s)
- engraved gem
Record 7, French
Record 7, Domaine(s)
- Joaillerie et bijouterie
- Gemmologie
Record 7, Main entry term, French
- intaille
1, record 7, French, intaille
correct, feminine noun
Record 7, Abbreviations, French
Record 7, Synonyms, French
Record 7, Textual support, French
Record number: 7, Textual support number: 1 DEF
Pierre fine gravée dont le dessin est creusé dans la matière à l'inverse du camée. 2, record 7, French, - intaille
Record number: 7, Textual support number: 1 CONT
Les intailles sont destinées à être utilisées comme sceaux ou à être observées du côté opposé, ce qui donne un effet ronde-bosse. 3, record 7, French, - intaille
Record 7, Spanish
Record 7, Textual support, Spanish
Record 8 - internal organization data 1996-10-17
Record 8, English
Record 8, Subject field(s)
- Masonry Practice
Record 8, Main entry term, English
- machine dress
1, record 8, English, machine%20dress
verb
Record 8, Abbreviations, English
Record 8, Synonyms, English
Record 8, Textual support, English
Record number: 8, Textual support number: 1 OBS
Dress : to make trim and smooth(lumber, stone, gem). 2, record 8, English, - machine%20dress
Record 8, French
Record 8, Domaine(s)
- Maçonnerie
Record 8, Main entry term, French
- dresser à la machine 1, record 8, French, dresser%20%C3%A0%20la%20machine
Record 8, Abbreviations, French
Record 8, Synonyms, French
Record 8, Textual support, French
Record number: 8, Textual support number: 1 OBS
Dresser : Rendre plan, mais pas nécessairement lisse: [...] dresser le parement d'une pierre. 2, record 8, French, - dresser%20%C3%A0%20la%20machine
Record 8, Spanish
Record 8, Textual support, Spanish
Record 9 - internal organization data 1993-11-09
Record 9, English
Record 9, Subject field(s)
- Goldsmithing and Silversmithing
- Gemmology
Record 9, Main entry term, English
- doublet 1, record 9, English, doublet
Record 9, Abbreviations, English
Record 9, Synonyms, English
Record 9, Textual support, English
Record number: 9, Textual support number: 1 DEF
a gem composed of two pieces of crystal or semiprecious stone sometimes with a layer of colored glass between them. 1, record 9, English, - doublet
Record 9, French
Record 9, Domaine(s)
- Orfèvrerie et argenterie
- Gemmologie
Record 9, Main entry term, French
- pierre doublée
1, record 9, French, pierre%20doubl%C3%A9e
feminine noun
Record 9, Abbreviations, French
Record 9, Synonyms, French
Record 9, Textual support, French
Record number: 9, Textual support number: 1 CONT
[les pierres doublées] sont formées de deux parties: l'une, en pierre fine incolore, constitue la couronne (...) l'autre, en verre coloré, constitue la culasse. Ces deux parties sont collées ensemble à la hauteur du feuilletis. 1, record 9, French, - pierre%20doubl%C3%A9e
Record 9, Spanish
Record 9, Textual support, Spanish
Record 10 - internal organization data 1987-10-26
Record 10, English
Record 10, Subject field(s)
- Gemmology
Record 10, Main entry term, English
- gem stone
1, record 10, English, gem%20stone
correct
Record 10, Abbreviations, English
Record 10, Synonyms, English
Record 10, Textual support, English
Record number: 10, Textual support number: 1 OBS
Gemstones (amethyst, jade, etc.), uncut, unworked (I.C.C., STACAN 12-541, Item 279 31), for/10.10. 74 xaf; 71; 2, record 10, English, - gem%20stone
Record 10, French
Record 10, Domaine(s)
- Gemmologie
Record 10, Main entry term, French
- pierre gemme
1, record 10, French, pierre%20gemme
feminine noun
Record 10, Abbreviations, French
Record 10, Synonyms, French
Record 10, Textual support, French
Record number: 10, Textual support number: 1 OBS
pierre gemme (2) (orfèvrerie) Pierres gemmes (améthyste, jade, etc.), non taillées, non travail- lées (C.P.I., STACAN 12-541, poste 279 31), for/10.10.74 1, record 10, French, - pierre%20gemme
Record 10, Spanish
Record 10, Textual support, Spanish
Record 11 - internal organization data 1985-11-28
Record 11, English
Record 11, Subject field(s)
- Jewellery
- Gemmology
Record 11, Main entry term, English
- tumble polished
1, record 11, English, tumble%20polished
correct
Record 11, Abbreviations, English
Record 11, Synonyms, English
Record 11, Textual support, English
Record number: 11, Textual support number: 1 CONT
Tumbled stone. A piece of gem material that has been tumble polished without first having been preshaped. 1, record 11, English, - tumble%20polished
Record 11, French
Record 11, Domaine(s)
- Joaillerie et bijouterie
- Gemmologie
Record 11, Main entry term, French
- poli au tonneau
1, record 11, French, poli%20au%20tonneau
proposal, adjective, masculine noun
Record 11, Abbreviations, French
Record 11, Synonyms, French
Record 11, Textual support, French
Record 11, Spanish
Record 11, Textual support, Spanish
Copyright notice for the TERMIUM Plus® data bank
© Public Services and Procurement Canada, 2025
TERMIUM Plus®, the Government of Canada's terminology and linguistic data bank
A product of the Translation Bureau
Features
Language Portal of Canada

Access a collection of Canadian resources on all aspects of English and French, including quizzes.
Writing tools

The Language Portal’s writing tools have a new look! Easy to consult, they give you access to a wealth of information that will help you write better in English and French.
Glossaries and vocabularies

Access Translation Bureau glossaries and vocabularies.
- Date Modified: