AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Germany > Manganite (twinned crystals) |
DESCRIPTION: | No. 39079 |
Mineral: | Manganite (twinned crystals) |
Locality: | Ilfeld, Harz Mountains, Thuringia, Germany (Type Locality for Manganite) |
Description: | Compact mass of crystallized black manganite with two shallow pockets that permitted complete terminated crystal growth. The pocket crystals show cruciform penetration twinning - a rare form for manganite. |
Overall Size: | 5x4x4 cm |
Crystals: | 1-4 mm |
Archived: | For reference only |
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