Mineralienatlas - Fossilienatlas
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Inserted from |
Philip Blümner, Nürnberg, Mittelfranken, Deutschland |
Collectors Summary
| Chemical Formula | (Cu2-xAlx)H2-xSi2O5(OH)4·nH2O |
| Color | blau, bläulichgrün |
| Streak color | grünlichweiß |
| Lustre | Glasglanz - Matt |
| Hardness (Mohs) | 3 - 4 |
| Solubility | +++ HF, Säuren |
| Crystal System | orthorhombisch, |
| Morphology | Vorkommen nur derb oder mikrokristallin |
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