David K. Joyce Minerals

Tsumeb, Namibia, Dioptase

Dioptase a copper silicate, is one of the most beautiful minerals to emerge from Tsumeb. The hexagonal prisms, usually terminated by a rhombohedra, are classic Tsumeb specimens. Here are some nice smaller specimens. The photo's do not do the colour justice. In almost all cases, the crystals are a richer, more emerald green than I have managed to capture.

All prices in Canadian dollars. For payment in US$, deduct 19% or multiply by 0.81.

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

Dioptase, CalciteTsumeb, Namibia, Dioptase
  • Item #13939
  • Dioptase, Calcite
  • 2.9x1.9x0.9 cm
  • Largest Crystal Size: d-6mm, c-micro
  • $35.00
  • Tsumeb

  • Namibia
  • This plate of emerald-green dioptase crystals is sprinkled with tiny crystals of a carbonate that I think is calcite. Different!
Dioptase, MalachiteTsumeb, Namibia, Dioptase
  • Item #13938
  • Dioptase, Malachite
  • 3.5x2.7x2.3 cm
  • Largest Crystal Size: 1.5mm
  • $35.00
  • Tsumeb

  • Namibia
  • Beautiful blue-green crystals of dioptase are scattered around this thick plate of white dolomite and associated with nests/sprays of light green malachite.
DioptaseTsumeb, Namibia, Dioptase
  • Item #13936
  • Dioptase
  • 3.1x2.5x1.2 cm
  • Largest Crystal Size: 2mm
  • $25.00
  • Tsumeb

  • Namibia
  • A shallow vug in this solid quartz matrix is lined with brilliant, emerald-green dioptase crystals.
DioptaseTsumeb, Namibia, Dioptase
  • Item #17135
  • Dioptase
  • 7.3x6.3x5.9 cm
  • Largest Crystal Size: 4mm
  • $225.00
  • Tsumeb
    Namibia
  • A cavity of gorgeous dioptase crystals occurs between what appear to be prism faces of interlocking quartz crystal segments. The dioptase is a wonderful, gemmy-emerald green and shows very well in this specimen.
DioptaseTsumeb, Namibia, Dioptase
  • Item #17141
  • Dioptase
  • 8.4x7.2x5.0 cm
  • Largest Crystal Size: 9mm
  • $160.00
  • Tsumeb
    Namibia
  • An opening in the front of this coarsely cleaved calcite exposes clusters and a lining of deep, gemmy, emerald green dioptase crystals. I've shown it in one orientation in the picture but it also sits nicely for display at 180 degrees to that orientation.