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

Ettringite with Calcite

$1,500.00   €1,469  £1,250.00 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

Related Mineral Specimens

Calcite
$2,000
 Egremont, Cumbria, England
Excellent specimen of gemmy 'nailhead' terminated Calcite crystals from the Egremont Iron mining...
Calcite on Quartz
$300
 Geevor Mine, Pendeen, Cornwall, England, Europe
Geevor/Levant mine has given up some of the best specimens of Calcite before its closure in...
Calcite included by Boulangerite
$3,500
 Herja Mine, Baia Mare, Maramures Co, Romania, Europe
An excellent display specimen ball of colourless Calcite included by metallic grey hairs of...
Calcite included by Boulangerite
$12,500
 Herja Mine, Baia Mare, Maramures Co, Romania, Europe
A somewhat different form of Calcite included by Boulangerite from the Herja Mine, Romania....