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0 item @ $0.00  

Hydroastrophyllite

#BW57041

Hydroastrophyllite

#BW57041
Availability
Sold
Size
5 x 3.5 x 1.5 cm - Miniature 
Formula
(H3O,K,Ca)3(Fe,Mn)5-65Ti2Si8(O,OH)31 (RRUFF)
Locality
Verkhnee Espe, Tarbagatai Range, E. Kazakhstan, Russia

Yellow alterations of Astrophyllite(?). It is not a sanctioned mineral by the IMA.

Hydroastrophyllite

Formula
(H3O,K)2Ca(Fe+++,Mn)5-6Ti2Si8O26(OH)4F 
Crystal System
Triclinic 
Crystal Habit
Blocky, Aggregates 
Cleavage
Good, Good, None 
Luster
Vitreous - Adamantine 
Color
dark brown 
Streak
yellow white 
Class
Triclinic - Pinacoidal 
Hardness
3-4 

Data courtesy of Webmineral.

Collection
Bill Wilson Collection

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