David K. Joyce Minerals

Greenland Minerals, Cuprostibite, Kangerdluarssuk, Ilimaussaq

Cuprostibite is a very rare mineral and the Ilimaussaq alkaline intrusive complex is one of the most prolific localities. This unique minerals is one of the few thallium minerals to be found in nature. There is more or less native copper in many of the samples, intimately associated with the Cuprostibite. Any green that you see is antimony-rich malachite, while blue is connelite. Here are some very good examples.

All prices in Canadian dollars. For payment in US$, deduct 20% or multiply by 0.8.

Click on any of the following thumbnails to view a larger image of the specimen.

Cuprostibite, CopperGreenland Minerals, Cuprostibite, Kangerdluarssuk, Ilimaussaq
  • Item #14992
  • Cuprostibite, Copper
  • 5.0x3.5x1.8 cm
  • Largest Crystal Size: n/a
  • $70.00
  • Kangerdluarssuk
  • Ilimaussaq
    Greenland
  • There is Cuprostibite on both sides of this specimen with a zone of cuprostibite right through the matrix. Actually the side not shown, has the bigger show of cuprostibite. Native copper is present to some extent in the Cuprostibite but more so in the alteration rind around the cuprostibite.
CuprostibiteGreenland Minerals, Cuprostibite, Kangerdluarssuk, Ilimaussaq
  • Item #14997
  • Cuprostibite
  • 6.1x3.2x3.3 cm
  • Largest Crystal Size: n/a
  • $60.00
  • Kangerdluarssuk
  • Ilimaussaq
    gre
  • A rich, pure zone of cuprostibite is perfectly exposed on the top of this specimen. No native copper on this one, that I can see. Nice specimen of a very rare mineral!
Cuprostibite, CopperGreenland Minerals, Cuprostibite, Kangerdluarssuk, Ilimaussaq
  • Item #15000
  • Cuprostibite, Copper
  • 5.5x2.6x2.1 cm
  • Largest Crystal Size: n/a
  • $70.00
  • Kangerdluarssuk
  • Ilimaussaq
    Greenland
  • A couple of nice zones of cuprostibite, in this specimen, that exhibit the purple-metallic colour and lustre. As well, there is some native copper associated with the mineral, particularly in the alteration halo around each zone.