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Mineral Specimens with Dioptase
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7.7 x 6 x 6 cm. A beautiful set of lustrous, sharp, gemmy Dioptase crystals just sprinkled on soft chrysocolla-coated matrix. The color is excellent, as is the luster. The largest crystal is 1.7 cm long and sticks out at the viewer; and it is well-complemented by an array of smaller crystals. Ex. Charlie Key Collection.
4.8 x 4.4 x 4.4 cm. Gemmy, lustrous, emerald-green Dioptase crystals to 1.2 cm aesthetically set on a matrix of turquoise-blue Chrysocolla from the Kaokoveld area, Namibia. Ex. Charlie Key Collection.
3.4 x 2.7 x 1.6 cm. A delicate cluster of sharp Dioptase crystals, the largest of which is about 1.3 cm long. The crystals have the classic deep green color and very good luster. Unusual new habit from this locality, since 2000 or so. Ex. Charlie Key Collection.
The camera could not capture the incredible RICH blue-green color of this dioptase specimen. In reality, it is a deeper and richer shade of what you see in the pics with a hint of blue to it that is unusual, and really quite dazzling. This Chilean dioptase is of course far different from the dioptase specimens we are all familiar with from Tsumeb, Russia and Zaire – it is a beautiful, velvety druse that covers the botryoidal surface of the matrix. I had not seen dioptase from this famed copper-rich locality before, and was stricken when I saw this lone specimen 12 x 9.5 x 4 cm
7.5 x 6.5 x 2.2 cm. An uncommon Arizona dioptase of unusually high quality for the locale, the Morenci Mine, featuring bright green microcrystals on a bubbly/botryoidal bed of contrasting sparkly, drusy quartz. Choice material for the locality for richness, intense color, aesthetics.
A remarkably pretty Tsumeb dioptase specimen, not just because of the brightness and isolation of the dioptase crystals themselves (to 1 cm), but because of the perfect calcite rhomb perched at the top of the specimen. 5.1 x 4.4 x 3.6 cm
4.8 x 3.8 x 2.6 cm. Highly lustrous and gemmy, dark emerald-green dioptase crystals richly and aesthetically cover the 3-dimensional matrix on this fine specimen from the classic locality of Brazzaville (Reneville), Republic of Congo. The largest crystal is 1.6 cm and it is doubly terminated. The bit of matrix has some chrysocolla, which is a nice accent. From the 1950 or 1960s.
7.8 x 4.8 x 4.3 cm. A beautiful dioptase on calcite specimen from the Tsumeb Mine. Gemmy and lustrous, emerald-green dioptase crystals to 1.0 cm are aesthetically scattered as isolated crystals or in clusters on the highly complimentary, glassy calcite rhombs. Ex. Rob Smith Collection.
A cute specimen with layers of both drusy dioptase AND duftite ona calcite rhomb! Cleaved on back and a few minor dings to the coating but overall in good shape for display. 3 x 2.9 x 1.3 cm
9.1 x 7.1 x 5.6 cm. I traded this specimen from Evan Jones, the dealer who dispersed the Russell Jones collection (no family relation), and it comes with his label, noting the date from the catalogue. This specimen was obtained by collector Russell Jones in 1939, according to his catalogue. Dioptase from Tsumeb, this we all know. But much Tsumeb dioptase of this quality did not come to market until the 1970s and 1980s. There is a tendency to assume that all fine dioptase from Africa came from Tsumeb. However, this small mine some distance away, Guchab, actually produced the first great Namibian dioptase in the 1930s, long before the richness of Tsumeb dioptase was known to the collecting community at large. Guchab is also famous for incredible large Descloizite crystals. It turns out that these dioptase specimens were much rarer then, and remain much so today as well. This specimen is a beautiful small cabinet piece by any standard, no matter where it is from. It has sharp crystals to just over 1 cm smothering a matrix coated with calcite. The matrix is literally a gangue rock, not ore as at Tsumeb. Also, the calcite is subtly different in style from Tsumeb...more sparkly, for one. The crystals are not the small sharp rhomobohedra you usually see with Tsumeb dioptase, but rather little jewel-like crystals of more complexity, rhombs modified by other terminations. So, in person, this piece really is distinct.
11.3 x 7.0 x 6.0 cm. Gemmy and lustrous, emerald-green dioptase crystals to 1.2 cm richly cover the sculptural cabinet matrix on this Tsumeb specimen. Ex. Rob Smith Collection.
4.5 x 2.6 x 2.5 cm. Gemmy and lustrous, emerald-green dioptase crystals on glassy, calcite rhombs.
Miniature. Gemmy and lustrous, emerald-green dioptase crystals on gossan matrix.
14.0 x 13.2 x 11.3 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 is filled with sharp, rich emerald green color Dioptase forming a very attractive, three dimensional specimen. The largest crystal measures a full 1.9 cm. This find seemed to be somewhat limited, and hopefully will produce more of this fine Dioptase.
A 3-dimensional knob with crystals almost all the way around, accented by contrasting matrix and calcite that isolates the crystals in areas, making it particularly attractive. Crystals to 1.6 cm. 6.2 x 5 x 4.5 cm
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Rob Lavinsky, rob@irocks.com
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share specimen![Dioptase, Chrysocolla from Kaokoveld Mine, Kaokoveld Plateau, Kunene Region, Namibia [db_pics/mdpics/MD-229820a.jpg]](db_pics/mdpics/MD-229820a.jpg)
![Dioptase, Chrysocolla from Kaokoveld Mine, Kaokoveld Plateau, Kunene Region, Namibia [db_pics/mdpics/MD-229820b.jpg]](db_pics/mdpics/MD-229820b.jpg)
![Dioptase, Chrysocolla from Kaokoveld Mine, Kaokoveld Plateau, Kunene Region, Namibia [db_pics/mdpics/MD-229840a.jpg]](db_pics/mdpics/MD-229840a.jpg)
![Dioptase, Chrysocolla from Kaokoveld Mine, Kaokoveld Plateau, Kunene Region, Namibia [db_pics/mdpics/MD-229840b.jpg]](db_pics/mdpics/MD-229840b.jpg)
![Dioptase from Kaokoveld Mine, Kaokoveld Plateau, Kunene Region, Namibia [db_pics/mdpics/MD-229853a.jpg]](db_pics/mdpics/MD-229853a.jpg)
![Dioptase from Kaokoveld Mine, Kaokoveld Plateau, Kunene Region, Namibia [db_pics/mdpics/MD-229853b.jpg]](db_pics/mdpics/MD-229853b.jpg)
![Dioptase from La Farola Mine, Cerro Pintado, Las Pintadas district, Tierra Amarilla, Copiapó Province, Atacama Region, Chile [db_pics/mdpics/MD-23110a.jpg]](db_pics/mdpics/MD-23110a.jpg)
![Dioptase, Quartz from Morenci Mine (Morenci pit; Phelps Dodge Morenci Mine; Morenci-Metcalf), Morenci, Copper Mountain District (Clifton-Morenci District), Shannon Mts, Greenlee Co., Arizona, USA [db_pics/mdpics/MD-23140a.jpg]](db_pics/mdpics/MD-23140a.jpg)
![Dioptase, Quartz from Morenci Mine (Morenci pit; Phelps Dodge Morenci Mine; Morenci-Metcalf), Morenci, Copper Mountain District (Clifton-Morenci District), Shannon Mts, Greenlee Co., Arizona, USA [db_pics/mdpics/MD-23140b.jpg]](db_pics/mdpics/MD-23140b.jpg)
![Dioptase, Calcite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-23153a.jpg]](db_pics/mdpics/MD-23153a.jpg)
![Dioptase, Chrysocolla from Brazzaville (Renéville; Djoué), Brazzaville Department (Renéville Department), Republic of Congo (Brazzaville) [db_pics/mdpics/MD-231675a.jpg]](db_pics/mdpics/MD-231675a.jpg)
![Dioptase, Calcite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-231840a.jpg]](db_pics/mdpics/MD-231840a.jpg)
![Dioptase, Duftite, Calcite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-23224a.jpg]](db_pics/mdpics/MD-23224a.jpg)
![Dioptase from Rodgerberg Mine, Guchab-Rodgerberg area, Grootfontein District, Otjozondjupa Region, Namibia [db_pics/mdpics/MD-232935a.jpg]](db_pics/mdpics/MD-232935a.jpg)
![Dioptase from Rodgerberg Mine, Guchab-Rodgerberg area, Grootfontein District, Otjozondjupa Region, Namibia [db_pics/mdpics/MD-232935b.jpg]](db_pics/mdpics/MD-232935b.jpg)
![Dioptase from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-234884a.jpg]](db_pics/mdpics/MD-234884a.jpg)
![Dioptase from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-234884b.jpg]](db_pics/mdpics/MD-234884b.jpg)
![Dioptase, Calcite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-235117a.jpg]](db_pics/mdpics/MD-235117a.jpg)
![Dioptase from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-235118a.jpg]](db_pics/mdpics/MD-235118a.jpg)
![Dioptase from Kimbedi, Pool Region, Republic of Congo (Brazzaville) [db_pics/mdpics/MD-236776a.jpg]](db_pics/mdpics/MD-236776a.jpg)
![Dioptase from 'Mbumba, Pimbi hill, Sanda, Mindouli, Pool Region, Republic of Congo (Brazzaville) [db_pics/mdpics/MD-23821a.jpg]](db_pics/mdpics/MD-23821a.jpg)