Mineralienatlas - Fossilienatlas
Collectors Summary
| Chemical Formula | (Mg,Fe2+)7Si8O22(OH)2 |
| Color | gelbgrau, gelbbraun, nelkenbraun, braungrün, smaragdgrün |
| Streak color | grauweiß |
| Lustre | Glasglanz, Perlglanz auf Bruchflächen |
| Hardness (Mohs) | 5.50 - 6.00 |
| Solubility | +++ HF only |
| Crystal System | orthorhombisch, Pnma |
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