• Covellite with Colusite, Bornite and Quartz
  • Covellite with Colusite, Bornite and Quartz
  • Covellite with Colusite, Bornite and Quartz
  • Covellite with Colusite, Bornite and Quartz
Sulphides, Sulphosalts and Arsenides

Covellite with Colusite, Bornite and Quartz

$2,000.00   €1,894  £1,600.00 approx.  

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

ID: CC28421
Colusite is a rare copper vanadium arsenic sulphide which occurs on this large miniature as tiny golden-bronze metallic crystals together with Covellite, Bornite and Quartz.  From the historic Butte Mining District in Silver Bow County, Montana, USA, all four species form crystals along one face of a tan, cream and light grey Quartzite matrix.  The Covellite forms as a black blades with peacock blue, mauve and purple iridescence together with small, similar coloured Bornite crystals nestled between the blades.  These sit on a bed of colourless and gemmy Quartz micro-crystals of, say, 1 to 3 mm tall.  An interesting combination of species from Butte with a Prosper J. Williams (Toronto) label.


5.2 × 7.3 × 4.1 cm
Quartz and Agate, Rare Minerals, Sulphides, Sulphosalts and Arsenides
Butte, Silver Bow Co., Montana, USA, North America

Minerals on Specimen

Minerals on specimen
Colusite, Bornite, Covellite, Quartz

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