Dioptase on Calcite | Emerald Green Crystals | 116.72 Gr | Tsumeb Mine, Otavi, Namibia

This specimen shows a group of well-shaped emerald-green dioptase crystals on pearly white calcite crystals . Dioptase is an uncommon copper mineral prized for its intense green colour. It is found in only a few copper mines world-wide, but the best examples come from Tsumeb, Namibia.

The Tsumeb Mine, one of the most famous mineral localities globally, produced dioptase with deep green hues, high clarity, and sharp crystal formations. Unlike dioptase from other locations, Tsumeb specimens often occur on a contrasting white calcite matrix, enhancing their visual appeal.

The Tsumeb Mine in Namibia is no longer actively producing dioptase. The mine, which was one of the world’s most famous mineral localities, ceased large-scale operations in the 1990s. While some minerals can still be found from old stockpiles, no new dioptase specimens are being extracted from the mine today.  This makes Tsumeb dioptase highly collectible, as no fresh supply is entering the market. Existing specimens, especially those with deep color, good transparency, and well-formed crystals on matrix, are increasingly rare and valuable among collectors

Dioptase is often associated with emotional healing, forgiveness, and heart chakra energy. Some believe it encourages letting go of past wounds and embracing compassion. It is also thought to promote inner clarity and transformation, making it popular for personal growth and emotional balance.

Name: Dioptase on Calcite Crystal
Specimen Size:  Cabinet-Sized
Dimensions:  65x50x38 mm / 2.6x2.0x1.5 inches
Weight: 116.72 Grams / 4.1 oz
Origin: Tsumeb Mine, Otavi, Namibia