Mineralienatlas - Fossilienatlas
Collectors Summary
| Chemical Formula | (Fe3+,Al)25[O6|(OH)12|(PO4)17]·75 H2O |
| Color | gelb bis bräunlich, rötlich orange, goldgelb, tief orange, selten grünlich |
| Streak color | gelb |
| Lustre | Seidenglanz |
| Hardness (Mohs) | 3 - 4 |
| Solubility | +++ Säuren, - Alkohol, am Besten keine Reinigung |
| Crystal System | hexagonal, P63/m |
| Morphology | Kreisrund von einem zentralen Mittelpunkt ausgehend |
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