Olmiite & Bultfonteinite on Matrix
Olmiite & Bultfonteinite on Matrix
N'Chwaning II Mine, Kalahari Manganese Field, Northern Cape, South Africa
Size: 4.5 x 3 x 2.2 cm (Miniature)
The specimen is has a single olmiite crystal with bultfonteinite deposited on the matrix. The olmiite crystal is deposited along one edge and measures 0.9cm with nice colour, lustre and gem quality. The bultfonteite is deposited in fine spray-like hairs coming off the matrix.
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SKU:SAMS-178
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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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