Mineralienatlas - Fossilienatlas
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Inserted from |
Kay Urbigkeit, Schleswig Holstein |
Collectors Summary
| Chemical Formula | CaCO3 |
| Color | farblos, weiß, gelb, braun, beige, rötlich, rosa-pink, violett, schwarz, hell- bis dunkelgrün, hell- bis tintenblau |
| Streak color | weiß |
| Lustre | Glasglanz, Diamantglanz, Fettglanz |
| Hardness (Mohs) | 3.5 - 4 |
| Cleavages | deutlich nach {010}; sehr undeutlich nach {110} und {011} |
| Fracture | halbmuschelig |
| Solubility | +++ Säuren, + NH4OH, Laugen |
| Crystal System | orthorhombisch, Pmcn |
| Morphology | häufig Zwillinge und Drillinge (120°), pseudohexagonal, garbenförmig - meist strahlig, stengelig, faserig, stalaktitisch, dendritisch |
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