Ettringite on Calcite on Matrix
Ettringite on Calcite on Matrix
N'Chwaning II Mine, Kalahari Manganese Field, Northern Cape, South Africa
Size: 7.7 x 3.5 x 1.4 cm (Small Cabinet)
This is a lovely colourful specimen with a deposit of Ettringite with Calcite and Hematite on the back side. The Ettringite deposit on this specimen is fine-grained, high lustre and with a very nice gemmy yellow colour and predominantly deposited on one side of the specimen. On the main display side of the bright Ettringite, the Ettringite has been deposited over some lovely elongated Calcite crystals. On the back of the specimen, Ettringite can be seen sporadically with a couple of small high lustre Hematite and lots of small Calcite. One of the Calcite on the main display face is cleaved.
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SKU:SAMS0024
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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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