Dioptase on Calcite, Tsumeb, Otavi Highlands, Namibia 3.22 cm x 2.44 cm x 1.54 cm Here is a nice, Miniature size specimen of dioptase crystals on a matrix of calcite crystals. Good coverage with some contact present. Nice showy small specimen. … More info

Here is a great small cabinet specimen of Dioptase.  It is from Tsumeb, Otavi Highlands, Namiba.  The specimen measures approx. 4.90 cm tall x 3.0 cm wide x 2.37 cm thick. The specimen weighs approx. 39 grams. This Dioptase specimen has crystals up to 5mm combined with drusy super&nb… More info

Dioptase on Calcite Mindouli / Kimbedi Pool Department, Republic of Congo 4.7 cm x 4.0 cm x 2.8 cm   Here is a wonderful dioptase specimen from this region in Africa. Beautiful gemmy emerald green dioptase crystals on top of a matrix that has a layer of calcite on it. This calcite fluoreses higher under shortwave UV light. The dioptase is more gemmy than mos… More info

 Here is a great specimen of Dioptase Crystals. This beautiful specimen comes from the M'fouati District, Bouenza Department, Republic of Congo.  The specimen measures approx. 3.04 cm x 3.06 cm x 3.24 cm. This specimen consists of a large cluster dioptase crystals, large and druze, the most prominent are the large, fine, high luster, gemmy emerald green cryst… More info

Dioptase w/ Mimetite, Wulfenite, Duftite Ntola Mine, Mindouli, Mindouli District, Pool Department, Republic of Congo 6.34 cm x 5.64 cm x 3.50 cm   Here is a beautiful specimen of Dioptase from this region in Africa. Beautiful deep emerald green crystals of gemmy dioptase are spread out all over this specimen. The backside is covered in dioptase crystals that wrap ar… More info

Dioptase with Plancheite, Quartz and Coronadite Sanda Mine  Mindouli, Kimbedi, Pool Region, Republic of Congo 6.8 cm x 5.1 cm x 2.4 cm   This is a wonderful specimen of Gem Dioptase crystals on Plancheite. It is not known when exactly this came out, but was told it is much older material than much on the market today. Yes, Gem Dioptase crystals which i… More info

Dioptase, Calcite, Smithsonite, Copper, Duftite Tsumeb Mine Tsumeb, Oshikoto Region, Namibia 5.7 cm x 4.6 cm x 4.2 cm   Out of an old collection, come this beautiful multi mineral specimen from the long closed Tsumeb Mine. This specimen was purchase sometime between the 1970s to 1982. Beautiful gemmy emerald green dioptase crystals,  sit on a copper bas… More info

Calcite with Dioptase Inclusions Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia 8.9 cm x 6.0 cm x 3.2 cm   Out of an old collection, comes this amazing specimen from the famous Tsumeb mine. This is a cluster of colorless and clear calcite crystals with high luster faces, some show twinning and most are inter-grown. These calcite rhombohedral crystals are included wit… More info