TERMIUM Plus®

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CAAL2SI4O12•4H2O [1 record]

Record 1 2011-02-07

English

Subject field(s)
  • Mineralogy
Universal entry(ies)
CaAl2Si4O12•4H2O
formula, see observation
DEF

A mineral, of a white color and vitreous luster [which consists of] a hydrous silicate of alumina and lime.

OBS

Exposed to the air, it loses water, becomes opaque, and crumbles.

OBS

Chemical formula: CaAl2Si4O12•4H2O

OBS

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

French

Domaine(s)
  • Minéralogie
Entrée(s) universelle(s)
CaAl2Si4O12•4H2O
formula, see observation
DEF

Minéral (zéolite) du système cristallin monoclinique, rencontré dans les cavités des roches ignées et en veines dans des schistes et argiles.

OBS

On la trouve en cristaux prismatiques blancs qui se réduisent en poussière au contact de l'air; il faut donc la conserver dans l'eau. Elle est répandue dans plusieurs localités des Alpes.

OBS

Formule chimique : CaAl2Si4O12•4H2O

OBS

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

Key term(s)
  • lomontite

Spanish

Campo(s) temático(s)
  • Mineralogía
Entrada(s) universal(es)
CaAl2Si4O12•4H2O
formula, see observation
DEF

Aluminosilicato hidratado de calcio [...], que cristaliza en el sistema monoclínico; se encuentra en forma de cristales blancos, a veces rojos, de brillo anacarado.

OBS

Fórmula química: CaAl2Si4O12•4H2O

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