Mineralienatlas - Fossilienatlas
Informations
Inserted from |
Diether G., Bodensee-Nord |
Collectors Summary
Chemical Formula | (Mn,Fe2+)SiO3·H2O |
Color | schwarz, dunkelbraun, silberbraun |
Streak color | braun |
Hardness (Mohs) | 3.5 |
Solubility | +++ Säuren |
Crystal System | amorph, |