Dioptase with Calcite - image 1

Dioptase with Calcite

Unknown Owner
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This wonderful Dioptase-Calcite combination piece from the famous Weyand Collection in Tsumeb is full of wonderful detail and at very large miniature to small cabinet size it makes a really lovely smaller display piece. An initial layer of large (up to 1.4 cm on edge) pale cream coloured rhombic Calcite crystals coat a thin piece of matrix. Classic, glossy, deep emerald green well-formed rhombic prisms of Dioptase, to 5 mm in length, are dispersed across the surface of the Calcite crystals. This in itself would be nice, but in an attractive twist, a later thin overgrowth of tiny white (to extremely pale minty blue-green) crystals of Dolomite (or possibly Calcite) encrust the very edges of the Calcite rhombs in thin lines, with some scattered upon the green Dioptase crystals too. A really distinctive Tsumeb mine Dioptase, oozing character.

Product details

SpeciesDioptase, Calcite
SizeSmall Cabinet
Dimensions6.8 x 5.2 x 3.6 cm
Added on12/17/2025
LocalityNamibia, Oshikoto Region, Tsumeb

Known provenance

DateCollectorAcquisition price
07/2026Unknown Owner$900.00
—Crystal ClassicsNot disclosed

Learn more

Dioptase
Mineral guide
Learn about Dioptase
vivid emerald-green crystals with glassy luster, often on white calcite or quartz; highly collectible due to color, clarity, and brittleness.
Dioptase
Regional guide
Dioptase from Tsumeb, Namibia
, Tsumeb (Namibia): deep emerald-green crystals with bluish cast, glassy luster, sharp terminations on calcite, a collector’s prized, iconic locality.