• Cobaltite
  • Cobaltite
  • Cobaltite
  • Cobaltite
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Cobaltite

$1,400.00   €1,270  £1,070.00 approx.  

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

ID: CC20374
A historic miniature of gunmetal-grey Cobaltite, tinged with the slightest blush of pink, forms about half the length of a mixed plate of Cobaltite and Calcite.  A major ore of the element cobalt, this was named by the German miners “Kobold ore” (“Goblin ore”), alluding to its toxicity, low known metal content (cobalt was unknown at the time) and difficulty to separate metals during smelting.  The Cobaltite has a chipped, semi-conchoidal surface and the Calcite has a rusty-deep tan colour and patina, inferring the many years elapsed since being mined and on show in collections.

Ex. the Mineral Collection of Archduke Stephan Franz Viktor of Hungary (1817 to 1867), with a historic Archduke (Erzherzog) Stephan label incorporating his coat of arms.  This smaller label measures 8.7 x 4.8 cm; it is complete (untrimmed) and is numbered 438/2.  This catalogue number does not appear on the specimen but there is an attached  Carl Rumpff label dated 1889.  This smaller sized Archduke label is in reasonable condition, with minor foxing but has five vertical creases and some cyclic discolouration but constrained by the creases.  The specimen comes with one of the unique thick green card boxes which the Archduke had specifically made to house the specimens.
 

Details

Dimensions
5.0 × 3.0 × 1.2 cm
Categories
Sulphides, Sulphosalts and Arsenides
Locality
Siegen, Siegerland, North Rhine-Westphalia, Germany

Minerals on Specimen

Minerals on specimen
Cobaltite

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