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1 item @ $40.00  

Astrophyllite

#BAC63060

Astrophyllite

#BAC63060
Availability
Sold
Size
3.3 x 2.5 x 1.8 cm - Miniature 
Formula
K2NaFe2+7Ti2(Si4O12)2O2(OH)4F (RRUFF)
Locality
Mont Saint-Hilaire, Montérégie, Québec, Canada

Stellate groups of reddish brown Astrphyllite to 1.5cm!

Astrophyllite

Formula
K2NaFe2+7Ti2(Si4O12)2O2(OH)4
Crystal System
Triclinic 
Crystal Habit
Bladed, Stellate, Crystalline - Fine 
Cleavage
Perfect, None, None 
Luster
Adamantine - Pearly 
Color
brown, brownish red, bronze yellow, gold yellow 
Streak
yellowish brown 
Class
Triclinic - Pedial 
Fracture
Brittle 
Hardness
3-3.5 

Data courtesy of Webmineral.

Collection
William & Anne Cook Collection

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