Cobaltoan Calcite, Kolwezite & Plancheite
Cobaltoan Calcite, Kolwezite & Plancheite
Tenke Mine, Tenke-Fungurume area, Lualaba, DR Congo
Size: 7.2 x 3.6 x 4.3 cm (Small Cabinet)
I bought this specimen in 2023 from the Tenke Mine which is a relatively new mine. There is a single cobaltoan calcite crystals deposited on a country rock matrix and surrounded by pale blue green plancheite. Just behind the crystals of cobaltoan calcite there is a recess with a botryoidal mass of light olive green kolwezite. The cobaltoan calcite measure 1.5cm coming off the matrix with good lustre and gem quality. The colour is bright pink..
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SKU:SAMS-213
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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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