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.
Dioptase, BayldoniteTsumeb, Namibia, Dioptase
  • Item #19882
  • Dioptase, Bayldonite
  • 8.0x5.0x3.4 cm
  • Largest Crystal Size: 2mm
  • $120.00
  • Tsumeb
  • Otavi
    Namibia
  • Here is a pretty one! Both sides of this plate are largely covered with sharp, emerald-green dioptase crystals and tiny, sharp, brown crystals of bayldonite. The bayldonite crystals are curved microcrystals that are confirmed by EDS analysis. The colour of the dioptade crystals in the photo's is not accurate. They are a more "blue-green" that is typical of dioptase. I could just NOT reproduce the colour accurately, this time. Beautiful!