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WHITE MICA [9 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2011-08-01

English

Subject field(s)
  • Mineralogy
Universal entry(ies)
KAl2(Si3Al)O10(OH,F)2
formula, see observation
DEF

A colorless or yellowish monoclinic mineral of the mica group which consists of a hydrous silicate of aluminum and potassium.

OBS

muscovite: Named after the Russian Province, Muscovy. Paragonite is a sodium-bearing muscovite, and gilbertite is a fluorine-rich muscovite.

OBS

Chemical formula: KAl2(Si3Al)O10(OH,F)2

French

Domaine(s)
  • Minéralogie
Entrée(s) universelle(s)
KAl2(Si3Al)O10(OH,F)2
formula, see observation
DEF

Variété de mica blanc qui est un silicate hydraté naturel d'aluminium et de potassium [...]

CONT

La muscovite abonde en paillettes comme élément des granites; elle est commune aussi en lamelles empilées dans les pegmatites. Elle est utilisée industriellement comme isolant.

CONT

La muscovite se présente sous forme de cristaux monocliniques de forme pseudohexagonale, tabulaire selon la base, blanc verdâtre ou brun clair. C'est pourquoi on l'appelle aussi «mica blanc» par opposition à la biotite ou «mica noir» [...]

OBS

Formule chimique : KAl2(Si3Al)O10(OH,F)2

Spanish

Save record 1

Record 2 2011-07-26

English

Subject field(s)
  • Mineralogy
DEF

A white clay-mineral mixture with regularly interstratified mica and smectite layers.

French

Domaine(s)
  • Minéralogie
DEF

Minéral constitué d'un mélange interstratifié de montmorillonite et de mica.

CONT

On distingue: [...] les interstratifications régulières qui ne se comportent pas comme des mélanges, mais comme de vrais minéraux, telles sont la «rectorite» (pyrophyllite et vermiculite), la «corrensite» (chlorite et chlorite gonflante), etc.

OBS

allevardite : Variété de rectorite trouvée à Allevard, Isère (France).

Spanish

Save record 2

Record 3 2011-07-12

English

Subject field(s)
  • Mineralogy
Universal entry(ies)
12001-26-2
CAS number
DEF

A silicate mineral that is characterized by a sheet cleavage.

CONT

Biotite is the ferromagnesian black mica, and muscovite is the potassic white mica. Sometimes mica is used as a lost-circulation material in drilling.

OBS

Synthetic mica is available. It has electrical and mechanical properties superior to those of natural mica ... Use: Electrical equipment, vacuum tubes, incandescent lamps, dusting agent, lubricant, windows in high-temperature equipment, filler in exterior paints, cosmetics, glass and ceramic flux, roofing, rubber, mold-release agent, specialty paper for insulation and filtration, wallpaper and wallboard joint cement, oil-well drilling muds.

OBS

isinglass: Mica especially when in thin transparent sheets.

OBS

daze: An old name for mica (from its glitter).

French

Domaine(s)
  • Minéralogie
Entrée(s) universelle(s)
12001-26-2
CAS number
DEF

Silicate lamellaire, à clivage très facile.

CONT

(Les micas forment une famille). [...] Toutes les espèces de la famille des micas sont monocliniques. Le mica existe dans une foule de roches cristallines et constitue l'un des trois éléments fondamentaux du granite.

Spanish

Save record 3

Record 4 2011-01-29

English

Subject field(s)
  • Mineralogy
CONT

Phengitic white mica has developed between the grain boundaries of recrystallized feldspars or at rims of high-Ti biotite.

OBS

Muscovite is the most common mica mineral. It's also called white mica.

OBS

phengitic white mica : term used at Natural Resources Canada-Earth Sciences Sector.

French

Domaine(s)
  • Minéralogie
OBS

muscovite : minéral; mica blanc [constitué de] silicate d'alumine potassique fréquent dans les granites, gneiss, absent des roches volcaniques.

OBS

Le mica blanc le plus fréquent est la muscovite [...]

OBS

mica blanc phengitique : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.

Spanish

Save record 4

Record 5 2009-05-21

English

Subject field(s)
  • Mineralogy
CONT

Chlorite also replaces relict igneous phenocrysts. It is most commonly found rimming relict pyroxenes and associated with white mica replacing relict feldspars.

OBS

relict igneous phenocryst: term used at Natural Resources Canada - Earth Sciences Sector.

French

Domaine(s)
  • Minéralogie
OBS

phénocristal igné relique : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.

OBS

phénocristal : gros cristal, dit aussi cristal porphyrique, dans une roche à grain fin, témoin d'une phase de cristallisation plus rapide ayant donné la roche microgrenue.

OBS

relique : vestige d'une roche ayant existé antérieurement : enclave de péridotite dans le basalte, phénocristal dans une roche microlithique.

Spanish

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Record 6 2007-09-17

English

Subject field(s)
  • Mineralogy
CONT

tremolite : A grey or white metamorphic mica of the amphibolite group, usually occurring as bladed crystals or fibrous aggregates.

OBS

metamorphic mica: term used at Natural Resources Canada - Earth Sciences Sector.

French

Domaine(s)
  • Minéralogie
OBS

mica métamorphique : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.

Spanish

Save record 6

Record 7 2006-11-15

English

Subject field(s)
  • Petrography
CONT

Leucocratic tonalite-Forms local elongate masses of white rock composed of plagioclase... and quartz; appear to be very large-scale schlieren. Leucocratic tonalite texturally similar to tonalite forming main part of Lakeview Mountains pluton, except for absence of mafic minerals and slightly smaller grain-size. Extremely poikilitic biotite and hornblende locally present in very small amounts. Rare interstitial white mica found in some plagioclase.

OBS

leucocratic tonalite: term used at Natural Resources Canada - Earth Sciences Sector.

French

Domaine(s)
  • Pétrographie
OBS

tonalite leucocrate : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.

Spanish

Save record 7

Record 8 2004-05-12

English

Subject field(s)
  • Mineralogy
  • Metals Mining
DEF

[A] mineral with a metallic lustre, high specific gravity, and in general ... good conducting properties.

CONT

... metallic deposits were formed by hot solutions coming from the interior of the Earth which emplaced the metallic minerals in rocks that had consolidated in a much earlier geologic time. ... In the other cases, metal-bearing solutions seep through permeable sedimentary rocks ... and precipitate the metallic minerals in pore-spaces or fractures or by replacement of non-metallic minerals.

CONT

Of the three classes of economic minerals (metallic minerals, mineral fuels, and industrial minerals), metallic minerals are those that may be used as a source of one or more metals. There are over 300 metallic minerals, the majority being sulfides and sulfosalts (60%) followed by oxides (25%) and native elements (10%).

CONT

Minor but common constituents of the veins include the silicate minerals tourmaline, albite, chlorite, and white mica; various metallic minerals, namely pyrite, arsenopyrite, pyrrhotite, chalcopyrite, sphalerite, and galena.

OBS

Examples: iron, tin, lead, rutile, titanium, tungsten, and uranium.

French

Domaine(s)
  • Minéralogie
  • Mines métalliques
DEF

Minéral ayant l'éclat métallique et les autres caractéristiques des métaux.

Spanish

Campo(s) temático(s)
  • Mineralogía
  • Minas metálicas
DEF

Mineral que puede ser mena de metales.

Save record 8

Record 9 1998-09-11

English

Subject field(s)
  • Petrography
  • Mineralogy
DEF

Gabbro in which, as a result of metamorphism, the plagioclase is altered to saussurite(a gray to greenish mixture of fine-grained epidote, zoisite, albite, white mica, quartz, and others) ;contemporaneous with this saussuritization, pyroxenes may alter to uralite, chlorite, and iron oxides, and olivine may alter to serpentine, talc, and chlorite.

French

Domaine(s)
  • Pétrographie
  • Minéralogie
DEF

Gabbro à l'intérieur duquel les feldspaths ont été altérés en saussurite.

OBS

Voir «saussurite» et «saussuritisation».

Spanish

Save record 9

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