Manganite on Calcite
Manganite on Calcite
N'Chwaning II Mine, Kalahari Manganese Field, Northern Cape, South Africa
Size: 5.1 x 4.1 x 2 cm (Small Cabinet)
The specimen has sphenoidal manganite in matrix with calcite as well as a dense deposit of sphenoidal manganite deposited from above onto bulging rhombic blocks of white calcite with a second generation of epitaxial calcite crystals. An attractive specimen.
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SKU:SAMS-209
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Mineral Sizing Guide
Understanding mineral sizes can help you choose the perfect specimen for your collection. Below is our guide to the standard size categories we use:
| Category |
Size |
Info |
| Thumbnail |
Up to 3 cm |
Thumbnails are small but well-formed mineral specimens that are perfect for display in thumbnail cases. |
| Miniature |
Up to 5 cm |
Great balance between size and detail - larger than thumbnails but still compact enough for easy storage and display. |
| Small-Cabinet |
Up to 9.4 cm |
Small-cabinet specimens offer larger crystal formations while still being easy to handle and display. |
| Cabinet |
Over 9.4 cm |
Ideal for prominent display pieces in a collection. Larger crystal formations and structure. |
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