Hydroxyapophyllite, Calcite on Matrix
Hydroxyapophyllite, Calcite on Matrix
N'Chwaning II Mine, Kalahari Manganese Field, Northern Cape, South Africa
Size: 6.5 x 4.2 x 3.1 cm (Small Cabinet)
Hydroxyapophyllite was fairly common at the Kalahari Manganese Fields, these days finding good undamaged ones is not so easy. This specimen is made up of multiple high lustre cubic crystals which have intergrown with one another and deposited onto a matrix with small sparkling Calcite crystals. The largest crystal here measures 11mm and some of them come off the matrix nicely. Overall in great condition, some of the crystals are surprisingly clear. Excellent matrix specimen.
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SKU:SAMS49
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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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