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Ettringite & Calcite on Matrix

N'Chwaning II Mine, Kalahari Manganese Field, Northern Cape, South Africa

Reference specimen

Dimensions

Metric
4 x 2.9 x 2.1 cm

I have always been very fond of this pocket from March 2003 at the N'Chwaning II Mine. There is a deposit of fine grained lemon yellow ettringite drusy covering the backs of calcite crystals which reach up to 1.2cm coming off the matrix. One of the smaller calcite crystals has a small cleav on the termination.

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Photograph 1 of 7 Ettringite & Calcite on Matrix

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Specimen data

Specimen number
SAMS0081
Size class
Miniature
Country
South Africa
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Mineral sizing guide

Longest dimension: Thumbnail up to 3 cm, Miniature up to 5 cm, Small Cabinet up to 9.4 cm, Cabinet over 9.4 cm. Size guide