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0 item @ $0.00  

Bermanite

#39275

Bermanite

#39275
Availability
Sold
Size
5 x 3 x 1.5 cm - Miniature 
Formula
Mn2+Mn3+2(PO4)2(OH)2·4H2O (RRUFF)
Locality
Tip Top mine, Custer Co., South Dakota, United States
Tagged
phosphate

Deep rusty red, acicular crystals to about 0.5mm lining a 2x1cm cavity.

Bermanite

Formula
Mn2+Mn3+2(PO4)2(OH)2·4H2
Crystal System
Monoclinic 
Cleavage
Perfect, Indistinct, None 
Luster
Vitreous - Resinous 
Color
light red, dark reddish brown 
Class
Monoclinic - Sphenoidal 
Fracture
Brittle 
Hardness
3.5 

Data courtesy of Webmineral.

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