Mineralienatlas - Fossilienatlas
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Inserted from |
Diether G., Bodensee-Nord |
Collectors Summary
| Chemical Formula | (Ca,Mn2+)0.2(Mn4+,Mn3+)O2·0.6H2O |
| Color | schwarz, braun, violett |
| Streak color | blass rötlichbraun mit einem blass violetten oder |
| Lustre | Metallglanz |
| Hardness (Mohs) | 2.5 - 3 |
| Solubility | +++ HCl |
| Crystal System | trigonal, P3 |
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