• Ettringite with Calcite
  • Ettringite with Calcite
  • Ettringite with Calcite
  • Ettringite with Calcite
Calcite

Ettringite with Calcite

$1,500.00   €1,339  £1,140.00 approx.  

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

ID: CC12302
A choice and highly aesthetic specimen with two hexagonal, acidic lemon-yellow Ettringite crystals to 1.7 and 1.8 cm long, perched either end of a well crystallised group of Calcite crystals.  Ettringite is a hydrous calcium aluminium sulphate and the crystals on this miniature grade from translucent outer shells with a glassy to satin lustre, to inner, opaque pale lemon-white cores.  The slightly longer crystal is not terminated whereas the smaller has one well terminated end.  A classic Ettringite from the N'Chwaning mines at Kuruman in the Kalahari Manganese Field of Northern Cape Province, South Africa.

Details

Dimensions
7.0 × 4.0 × 2.6 cm
Categories
Calcite, Sulphates, Nitrates and Borates
Locality
N'Chwaning Mines, Kalahari Manganese Fields, Northern Cape Province, South Africa, Africa

Minerals on Specimen

Minerals on specimen
Calcite, Ettringite

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