Mineralienatlas - Fossilienatlas
Informations
Inserted from |
Diether G., Bodensee-Nord |
Collectors Summary
| Chemical Formula | (Mn2+,Fe2+)16Si12As3+3O36(OH)17 |
| Color | hellbraun, rötlichbraun |
| Streak color | hellbraun |
| Hardness (Mohs) | 5 |
| Solubility | +++ HCl |
| Crystal System | hexagonal, P63 |
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