Tsumeb Dioptase 46mm — Final Era Specimen, Namibia

A Tsumeb dioptase specimen, 46mm and 36.4g, vivid emerald green crystals formed naturally across a substantial section of host rock, giving the piece genuine presence for its size.

Why does material from this specific mining window, 1998 to 2006, carry particular weight among collectors? Because it represents the final stretch of production before the Tsumeb Mine closed permanently. Once one of the most productive and mineralogically diverse deposits ever worked, Tsumeb is now finished, meaning every genuine specimen from this locality is drawing from a fixed, non renewing supply rather than an ongoing source. Dioptase is traditionally associated with heart centred energy, emotional clarity, and renewal.

A closer look

Dioptase is a copper cyclosilicate, and its intense green colour comes directly from copper within the crystal lattice itself. The mineral forms under fairly specific alkaline oxidation conditions, since the more common acidic conditions produced by weathering copper sulfide ore usually yield malachite or azurite instead. Tsumeb material is widely regarded as the benchmark for the species, prized for its saturated colour and sharp, well formed crystal habit.

• Stone: Dioptase, natural copper cyclosilicate
• Form: Crystal specimen on matrix
• Size: 46mm x 38mm x 21mm
• Weight: 36.4g
• Origin: Tsumeb Mine, Otjikoto Region, Namibia, mined 1998–2006

Living with your dioptase

Dioptase contains copper, so wash your hands after handling this raw specimen and avoid prolonged water exposure or any use as a direct elixir stone. A piece this size suits a prominent shelf or cabinet spot where good light can reach the crystal faces.

Please note: crystals are not a substitute for professional medical advice, diagnosis, or treatment. Keep small pieces away from young children.