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Pinakiolite

#55765

Pinakiolite

#55765
Availability
Sold
Size
2.4 x 2 x 1.5 cm - Thumbnail 
Formula
(Mg,Mn2+)2(Mn3+,Sb5+)O2(BO3) (RRUFF)
Locality
Japan mine, Langban, Filipstad, Varmland, Sweden

Metallic black crystals of Pinakiolite on matrix.

Type Locality

Pinakiolite

Formula
(Mg,Mn2+)2(Mn3+,Sb5+)O2(BO3
Crystal System
Monoclinic 
Crystal Habit
Tabular 
Cleavage
Good, None, None 
Luster
Adamantine - Metallic 
Color
black 
Streak
brown gray 
Class
Monoclinic - Prismatic 
Fracture
Brittle 
Hardness

Data courtesy of Webmineral.

Collection
Dr. Buford Nichols Collection
Special Info
Type Locality

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