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Mineral class | Oxides : Pyrolusite - Manganite group |
Chemical formula | (Ba,Mn)3(O,OH)6 |
Crystal system |   |
Habitus | Botryidal aggregates or earthy masses. It also forms as dendrites. |
Cleavage |   |
Hardness | 6 (or lower on earthy variants) |
Density |   |
Color | Black to dark gray. |
Streak | Brownish black. |
Luster | Submetallic to dull. |
Description |   |
Occurance | Often as weathering products from other manganeese minerals. |
Associates |   |
Notes |   |
Locations | Not so common in Sweden.
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To oxides index. |
Mineral group index. |
Main index. |
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