| AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from New Mexico > Psilomelane (romanèchite+hollandite+cryptomelane) |
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| DESCRIPTION: | No. 78154 |
| Mineral: | Psilomelane (romanèchite+hollandite+cryptomelane) |
| Locality: | Socorro County, New Mexico |
| Description: | Brown-black psilomelane crystals (mixture of oxides of manganese composed of romanèchite, hollandite, cryptomelane, etc.) in hemispherical aggregates to 10 mm diameter over a quartz core. The psilomelane crystals are in layered, concentric growth. Collected ca. 1975 |
| Overall Size: | 5.5x3.5x2 cm |
| Crystals: | 0.2-2.0 mm |
| Archived: | For reference only |
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