Mineralienatlas - Fossilienatlas
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Inserted from |
Philip Blümner, Nürnberg, Mittelfranken, Deutschland |
Collectors Summary
| Chemical Formula | SiO2 |
| Color | weißgrau, bläulich |
| Streak color | weiß |
| Hardness (Mohs) | 6.5 - 7 |
| Solubility | +++ HF, + NaOH, KOH |
| Morphology | mikroskopisch klein, Aggregate faserig-radialstrahlig, stalaktitisch, traubig, niedrig, stets etwas porös |
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