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Mineral Specimens with Dioptase
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4.7 x 2.8 x 2.7 cm. When it comes to Dioptase, there is no locality greater or more prolific than Tsumeb for quantity and quality. This specimen exhibits the top emerald-green color (impossible to replicate in photos) that made these specimens so famous. The crystals themselves, despite a few minor "rubs" are in very good condition overall, and even pass light when backlit. They final touch to these sharp, lustrous trigonal crystals is the fact that they are sitting on a mound on classic contrasting white Calcite matrix. Ex. Brian Kosnar Collection.
6.6 x 5.7 x 2.8 cm. Dioptase is known from a few world localities in superb quality specimens, but recently there was a find of new material in the Pool Region of the Congo. The best of these specimens show great color, with larger sized crystals and excellent gemminess. This particular specimen comprises very sharp, highly lustrous, small, rich emerald-green color Dioptase crystals forming a beautiful "green blanket". The largest crystal measures 8 mm and most of the crystals are pristine. This find seemed to be somewhat limited, and hopefully will produce more of this fine quality Dioptase soon.
3.7 x 3.3 x 2.5 cm. Dioptase is known from a few world localities in superb quality specimens, but recently there was a find of new material in the Pool Region of the Congo. The best of these specimens show great color, with larger sized crystals and excellent gemminess. This particular specimen hosts one predominant, sharp, and rather large (2.3 cm) Dioptase crystal associated with a few smaller translucent, rich emerald-green Dioptase crystals forming a very attractive, three-dimensional piece. This find seemed to be somewhat limited, and hopefully will produce more of this fine Dioptase.
7.4 x 4.0 x 2.0 cm. Scintillating, very gemmy, emerald-green dioptase crystals richly cover both sides of the sculptural, triangular matrix covered with starkly contrasting white calcite rhombs. Dioptase on calcite is a highly desirable combination from this mine. This is a highly representative example of the species and renowned locale, and the dioptase crystals are really far above average, in gemminess and color, for the locale.
Fine green crystals isolated on a matrix of quartz crystals. Good dioptases from Russia are actually harder to get than those from Tsumeb! 3.9 x 3.9 x 2.8 cm
7 x 5.5 x 4.2 cm. A rich, massive specimen of fibrous Malachite hosting a 2.5 cm wide pocket of Dioptase. This pocket contains numerous Dioptase crystals, the largest if which is a highly lustrous crystal over 1 cm long. The vug extends deep into the piece. A very unusual pocket specimen. Ex. Charlie Key.
5.4 x 3 x 1.7 cm. A striking set of three beautiful Dioptase crystals, surrounded by a dusting of Plancheite, on matrix. The Dioptases have excellent deep green color and superb luster. The largest of the crystals is 1.6 cm. Rarely do you have Dioptase crystals so isolated and so well defined. A terrific, aesthetic specimen. Ex. Charlie Key.
5.2 x 3.7 x 2.3 cm. A truly magnificent specimen consisting of a brilliant and lustrous 1.5 cm Dioptase crystal (terminated at the base if not atop), nestled at the top of an amazingly aesthetic Malachite fan-spray. The fan-spray is complete-all-around and on both sides. A unique specimen...but even more interesting, this is primary malachite, not malachite replacing azurite, which is more common. Ex. Charlie Key.
7.7 x 4.6 x 3.6 cm. Dioptase is known from a few world localities in superb quality specimens, but recently there was a find of new material in the Pool Region of the Congo. The best of these specimens show great color, with larger sized crystals and excellent gemminess. This particular specimen hosts sharp, rich emerald-green color Dioptase on rare contrasting soft blue color Plancheite. This find seemed to be somewhat limited, and hopefully will produce more of this superb Dioptase.
3.4 x 3.0 x 1.6 cm. Dioptase is known from a few world localities in superb quality specimens, but recently there was a find of new material in the Pool Region of the Congo. These specimens show great color, with larger sized crystals and excellent gemminess. This particular specimen hosts very sharp, lustrous, gemmy, rich emerald-green Dioptase crystals measuring up to 2.0 cm long. This find seemed to be somewhat limited, and hopefully will produce more of this fine Dioptase.
6.5 x 5.0 x 3.0 cm. Calcite and dioptase specimens are very highly desirable from the Tsumeb Mine. This is a striking and aesthetic combination specimen of the two species. A showy cluster of sharp, glassy calcite rhombs to 1.6 cm have a thin veneer or are included by dioptase microcrystals. Festooned atop the green-tinted calcite rhombs is a sparkling, second generation of sugary calcite crystals, which really add a dramatic effect to this excellent specimen. Very nearly pristine. Ex. Al and Sue Liebetrau Collection.
6.6 x 4.4 x 3.8 cm. Scintillating, gemmy, emerald-green dioptase crystals to about 6 mm are very richly and aesthetically nestled on contrasting powder-blue plancheite on a 3-dimensional quartz matrix. Lovely contrasting colors in this fine piece. Ex. Charlie Key.
7.3 x 4.2 x 2.8 cm. Beautiful, gemmy and lustrous, dark emerald-green dioptase crystals to 1.0 cm totally cover the sculptural, curved, gossan crust on this very rich and fine specimen from recent finds at the Kaokoveld area of Namibia. Pristine, except for trivial periphery wear. Highly representative for the species and locale.
6.2 x 5.9 x 3.4 cm. Riveting, highly lustrous, dark emerald-green dioptase crystals fill a very well-placed, 4.6 cm vug atop an aesthetic wedge-shaped matrix on this fine specimen from Tsumeb. The crystals, to 1.3 cm, are very gemmy on the outer 1 mm, then become green-opaque in their interiors. Striking and unusual crystals. The bit of lighter green mottramite or duftite is a nice accent. All of the crystals in the interior of this beautiful cluster are pristine.
4.6 x 3.2 x 2.8 cm. A very nice three-sided combination miniature from the Tsumeb Mine. The mounded piece is totally covered on one side with super-sparkly, gemmy, emerald-green dioptase crystals. The dioptase crystals are nicely discrete on the other side and are beautifully accented by a 6 mm calcite rhomb. This side and the base reveal the silky lustre, pink cobaltoan smithsonite botryoids of the matrix. Two sides are further accented with contrasting pastel-green duftite. Ex. Wes Parker Collection.
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Rob Lavinsky, rob@irocks.com
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share specimen![Dioptase from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-263200a.jpg]](db_pics/mdpics/MD-263200a.jpg)
![Dioptase from Kimbedi, Pool Region, Republic of Congo (Brazzaville) [db_pics/mdpics/MD-266433a.jpg]](db_pics/mdpics/MD-266433a.jpg)
![Dioptase from Kimbedi, Pool Region, Republic of Congo (Brazzaville) [db_pics/mdpics/MD-270322a.jpg]](db_pics/mdpics/MD-270322a.jpg)
![Dioptase, Calcite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-271415a.jpg]](db_pics/mdpics/MD-271415a.jpg)
![Dioptase from Altyn-Tyube (Altyn-Tube) deposit, Kirghiz Steppes (Asiatic Steppes), Qaraghandy Oblysy (Karaganda Oblast'), Kazakhstan [db_pics/mdpics/MD-27209a.jpg]](db_pics/mdpics/MD-27209a.jpg)
![Dioptase, Malachite from Brazzaville (Renéville; Djoué), Brazzaville Department (Renéville Department), Republic of Congo (Brazzaville) [db_pics/mdpics/MD-272632a.jpg]](db_pics/mdpics/MD-272632a.jpg)
![Dioptase, Plancheite from Christoff Mine, Kaokoveld Plateau, Kunene Region, Namibia [db_pics/mdpics/MD-272656a.jpg]](db_pics/mdpics/MD-272656a.jpg)
![Dioptase, Plancheite from Christoff Mine, Kaokoveld Plateau, Kunene Region, Namibia [db_pics/mdpics/MD-272656b.jpg]](db_pics/mdpics/MD-272656b.jpg)
![Dioptase, Malachite from Kaokoveld Plateau, Kunene Region, Namibia [db_pics/mdpics/MD-273119a.jpg]](db_pics/mdpics/MD-273119a.jpg)
![Dioptase, Malachite from Kaokoveld Plateau, Kunene Region, Namibia [db_pics/mdpics/MD-273119b.jpg]](db_pics/mdpics/MD-273119b.jpg)
![Dioptase, Plancheite from Kimbedi, Pool Region, Republic of Congo (Brazzaville) [db_pics/mdpics/MD-273383a.jpg]](db_pics/mdpics/MD-273383a.jpg)
![Dioptase, Plancheite from Kimbedi, Pool Region, Republic of Congo (Brazzaville) [db_pics/mdpics/MD-273383b.jpg]](db_pics/mdpics/MD-273383b.jpg)
![Dioptase from Kimbedi, Pool Region, Republic of Congo (Brazzaville) [db_pics/mdpics/MD-275134a.jpg]](db_pics/mdpics/MD-275134a.jpg)
![Dioptase from Kimbedi, Pool Region, Republic of Congo (Brazzaville) [db_pics/mdpics/MD-275134b.jpg]](db_pics/mdpics/MD-275134b.jpg)
![Calcite, Dioptase from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-278321a.jpg]](db_pics/mdpics/MD-278321a.jpg)
![Calcite, Dioptase from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-278321b.jpg]](db_pics/mdpics/MD-278321b.jpg)
![Dioptase, Plancheite, Quartz from Kaokoveld Plateau, Kunene Region, Namibia [db_pics/mdpics/MD-278367a.jpg]](db_pics/mdpics/MD-278367a.jpg)
![Dioptase, Plancheite, Quartz from Kaokoveld Plateau, Kunene Region, Namibia [db_pics/mdpics/MD-278367b.jpg]](db_pics/mdpics/MD-278367b.jpg)
![Dioptase from Kaokoveld Plateau, Kunene Region, Namibia [db_pics/mdpics/MD-280508a.jpg]](db_pics/mdpics/MD-280508a.jpg)
![Dioptase from Kaokoveld Plateau, Kunene Region, Namibia [db_pics/mdpics/MD-280508b.jpg]](db_pics/mdpics/MD-280508b.jpg)
![Dioptase from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-280549a.jpg]](db_pics/mdpics/MD-280549a.jpg)
![Dioptase from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-280549b.jpg]](db_pics/mdpics/MD-280549b.jpg)
![Dioptase, Calcite, Duftite, Smithsonite (Var: Cobaltoan Smithsonite) from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-282213a.jpg]](db_pics/mdpics/MD-282213a.jpg)
![Dioptase, Calcite, Duftite, Smithsonite (Var: Cobaltoan Smithsonite) from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-282213b.jpg]](db_pics/mdpics/MD-282213b.jpg)
![Dioptase, Calcite, Duftite, Smithsonite (Var: Cobaltoan Smithsonite) from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-282213c.jpg]](db_pics/mdpics/MD-282213c.jpg)