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0 item @ $0.00  

Pyrolusite

#PD31822

Pyrolusite

#PD31822
Availability
Sold
Size
4 x 4 x 1.5 cm - Miniature 
Formula
MnO2 (RRUFF)
Locality
Butte dist., Silver Bow Co., Montana, United States

Balck to brassy iridescent Pyrolusite.

Pyrolusite

Formula
MnO2 
Crystal System
Tetragonal 
Crystal Habit
Reniform, Dendritic, Earthy 
Cleavage
Perfect, None, None 
Luster
Sub Metallic 
Color
steel gray, iron gray, bluish gray 
Streak
black 
Class
Tetragonal - Ditetragonal Dipyramidal 
Fracture
Brittle 
Hardness
6-6.5 

Data courtesy of Webmineral.

Collection
Phillips Collection

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