TERMIUM Plus®

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(MG FE)7SI8O22(OH)2 [1 record]

Record 1 2011-06-21

English

Subject field(s)
  • Mineralogy
  • Asbestos Mining
Universal entry(ies)
(Mg,Fe)7Si8O22(OH)2
formula, see observation
DEF

A mineral, magnesium-iron silicate ... occurring in schists in lamellar or fibrous clove-brown crystals.

OBS

anthophyllite: Named from the Latin "anthophyllum," meaning clove, in allusion to the clove-brown color.

OBS

Chemical formula: (Mg,Fe)7Si8O22(OH)2

French

Domaine(s)
  • Minéralogie
  • Mines d'amiante
Entrée(s) universelle(s)
(Mg,Fe)7Si8O22(OH)2
formula, see observation
DEF

Amphibole ferro-magnésienne de structure cristalline orthorhombique et d'aspect fibreux.

CONT

Anthophyllites. Ces amphiboles sont orthorhombiques; mais elles ne sont que rarement cristallisées; le plus souvent on les rencontrera en masses fibreuses ou fibrolamellaires, de teinte toujours très claire, sinon transparente, quelquefois tirant sur le vert. [...] d = 5,5; [...] Ces minéraux sont ou bien des éléments de roches métamorphiques, ou bien proviennent d'anciennes roches à pyroxène ayant subi une altération [...]

OBS

Étymologie : du latin anthophyllum, «clou de girofle» faisant allusion à sa couleur.

OBS

Formule chimique : (Mg,Fe)7Si8O22(OH)2

PHR

Ferro-, magnésio-anthophyllite.

Spanish

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