• Ettringite
  • Ettringite
  • Ettringite
  • Ettringite
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Ettringite

$950.00   €929  £790.00 approx.  

This specimen is priced in US dollars, all other prices are approximate.

ID: CC13454
A group of mustard-caramel-brown Ettringite crystals cover a pinkish-cream porous carbonate matrix from the Wessels mine at Hotazel in Northern Cape Province, South Africa.  The largest crystal measures 4.5 x 0.9 x 0.5 cm and the two main crystals are well terminated.  On examination of the bases of a few crystals, the dark coloured Ettringite is seen to be a 0.5 mm thick rind on what are more glassy, colourless to pale lemon-yellow crystals which form the prism cores.  An interesting specimen and a good example of Ettringite, a hydrous calcium aluminium sulphate.

Details

Dimensions
5.1 × 3.3 × 2.5 cm
Categories
Sulphates, Nitrates and Borates
Locality
Wessels Mine, Hotazel, Kalahari Manganese Fields, Northern Cape Province, South Africa, Africa

Minerals on Specimen

Minerals on specimen
Ettringite

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