AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from South Africa > Olmiite-Poldervaartite on Hematite |
DESCRIPTION: | No. 59665 |
Mineral: | Olmiite-Poldervaartite on Hematite |
Locality: | N'Chwaning Mine, Kalahari Manganese Field, Northern Cape Province, South Africa (Type Locality for Olmiite) |
Description: | Tan-colored prismatic olmiite-poldervaartite crystals on dark hematite. This specimen was originally labeled as poldervaartite, but recent tests confirm that crystals may be zoned from olmiite to poldervaartite and visual identification is not possible. |
Overall Size: | 10x6x3 cm |
Crystals: | 2-8 mm |
Archived: | For reference only |
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