Thaumasite
N'Chwaning II Mine, Kalahari Manganese Field, Northern Cape, South Africa.
Photograph 1 of 5
Bultfonteinite psm Hydroxyapophyllite with Calcite
N'Chwaning II Mine, Kalahari Manganese Field, Northern Cape, South Africa
Reference specimen
Dimensions
Display units
- Metric
- 2 x 2.5 x 1.3 cm
- Inches
The specimen is an example of bultfonteinite after hydroxyapophyllite with calcite. The pseudomorph is in a cubic form with bevelled corners in a slightly pink bultfonitenite. The prominent crystal is 1.2cm on edge.
Specimen data
- Specimen number
- SAMS-307
- Size class
- Thumbnail
- 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
