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0 item @ $0.00  

Ferrohornblende

#PD48084

Ferrohornblende

#PD48084
Availability
Sold
Size
9 x 7 x 6 cm - Sm Cabinet 
Formula
□Ca2(Fe2+4Al)(Si7Al)O22(OH)2 (RRUFF)
Locality
Mt. Vesuvius, Somma Complex, Napoli, Campania, Italy

Just a chunk of rock containing about 40% Ferrohornblende.

Ferrohornblende

Formula
[box]Ca2(Fe2+4Al)(Si7Al)O22(OH)2 
Crystal System
Monoclinic 
Crystal Habit
Columnar, Massive - Fibrous, Massive - Granular 
Cleavage
Perfect, Distinct, None 
Luster
Vitreous - Pearly 
Color
brown, green, greenish brown, black 
Streak
white 
Class
Monoclinic - Prismatic 
Fracture
Sub Conchoidal 
Hardness
5-6 

Data courtesy of Webmineral.

Collection
Don Phillips Collection

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