Tsumeb Dioptase on Calcite
Tsumeb Mine, Namibia
Emerald-green dioptase crystals scattered across pale calcite — a colour that stops the eye.
Stewardship Records
- Locality confirmed as the Tsumeb Mine, Namibia.
- Full provenance dossier available on inquiry.
Formation
Dioptase forms in the oxidised zones of copper deposits, crystallising from copper-bearing fluids in arid, carbonate-rich settings.
Dioptase belongs in a protected vitrine with focused light, where its saturated green reads against the calcite.
Significance
The Tsumeb Mine in Namibia is one of the most storied mineral localities on Earth, having produced an extraordinary diversity of species, including superb dioptase.
Tsumeb specimens are held by major museums and are keenly collected for their quality and history.
Fine dioptase shows deep, gemmy green crystals; contrast with white or cream calcite heightens the effect.
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