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K(FE 2 MG FE 3)8(SI AL)12(O OH)27 [1 record]

Record 1 2011-01-13

English

Subject field(s)
  • Mineralogy
Universal entry(ies)
K(Fe+2,Mg,Fe+3)8(Si,Al)12(O,OH)27
formula, see observation
DEF

A black or greenish-black mineral consisting of a hydrous silicate of iron and alumina, and occurring in foliated plates and velvety bronze-colored incrustations.

OBS

Chemical formula: K(Fe+2,Mg,Fe+3)8(Si,Al)12(O,OH)27

OBS

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

French

Domaine(s)
  • Minéralogie
Entrée(s) universelle(s)
K(Fe+2,Mg,Fe+3)8(Si,Al)12(O,OH)27
formula, see observation
DEF

Phyllosilicate des systèmes cristallins monoclinique et triclinique, se présentant souvent en cristaux aplatis brun-vert foncé, dans certains schistes métamorphiques.

OBS

Formule chimique : K(Fe+2,Mg,Fe+3)8(Si,Al)12(O,OH)27

OBS

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

Spanish

Campo(s) temático(s)
  • Mineralogía
Entrada(s) universal(es)
K(Fe+2,Mg,Fe+3)8(Si,Al)12(O,OH)27
formula, see observation
DEF

Silicato hidratado de hierro y de aluminio; del grupo de las micas duras; forma placas exfoliables de color entre verde y pardo [...]

OBS

Fórmula química: K(Fe+2,Mg,Fe+3)8(Si,Al)12(O,OH)27

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