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0 item @ $0.00  

Annite

#PD46712

Annite

#PD46712
Availability
Sold
Size
3.5 x 2.5 x 2 cm - Miniature 
Formula
KFe2+3(Si3Al)O10(OH)2 (RRUFF)
Locality
Ilmeny Mts, South Urals, Russia

Chocalate brown thin plates to 6mm. It is a member of the Mica group.

Annite

Formula
KFe2+3(Si3Al)O10(OH)2 
Crystal System
Monoclinic 
Cleavage
Perfect, None, None 
Luster
Sub Metallic 
Color
reddish brown, black 
Streak
brownish white 
Class
Monoclinic - Prismatic 
Hardness
2.5-3 

Data courtesy of Webmineral.

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