Very good size specimen of dioptase. It is a druse of small but very bright and defined crystals. They stand out from the matrix. From a classic town like Tsumeb. *Getting a camera to extract the color of dioptase is an arduous task...

290 €

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Contrasting sparkly dolomite matrix are lustrous, dark green spheres to 1 mm across, of conichalcite. This is an uncommon, calcium, copper arsenate and it is rare in the form of such isolated crystals or crystal aggregates as you see here (forming little ball-shaped growths).This aesthetic specimen is double sided.

An old specimen of smithsonite, with an orange to pink hue, formed by numerous highly faceted crystals, with curved edges and disposed on a matrix with galena, iridescent chalcopyrite and other sulfides. A good sized classic...

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In a vug of the matrix there are numerous complete and brilliant dioptase crystals with the characteristic intense green color. They are accompanied by small yellow crystals of duftite, on calcite rhombohedra. A very aesthetic classic from this mine.

Old specimen of a good size formed by a matrix partially covered by small but brilliant crystals of duftite, a lead and copper arsenate, with a deep green color. They are accompanied by prismatic crystals of mimetite, between white and yellowish, together with crystals of cerussite. An entertainment under the magnifying glass. It comes from the Joan Astor collection (Barcelona), with a handwritten label and typewritten box.

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Globular aggregates of malachite, with an intense green color, brilliant and that stand out on a matrix of calcite. A specimen from Tsumeb and belonging from the Manchion collection (Barcelona).

Gemmy, transparent to translucent, colorless crystals of anglesite. It shows a parallel growth of dipyramidal anglesite crystals, so rare from Tsumeb! On a matrix with dark gray to black mineral, possibly one of the manganese oxides. Very unusual. It was acquired to Bailey Minerals (Ángel Jesús Talabán García, Segovia 1942-Madrid 2007).

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Superb cerussite specimen from this worldwide classic locality. It shows a cyclic twin, with some more developed crystals, very brilliant, between translucent to transparent, with a very aesthetic pinkish red tone. It presents a second generation of prismatic type cerussite crystals that have grown locally on some faces. Very aerial and with a small matrix. It was acquired in 1975 from Bailey Minerals (Ángel Jesús Talabán García, Segovia 1942-Madrid 2007). A very aesthetic and good size piece.

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Rich group of azurite crystals, with well-defined crystallographic forms, some of them doubly terminated. Intense and characteristic blue color and very brilliant. They are disposed on a matrix accompanied by well defined cerussite crystals, between translucent to transparent, with duftite. From this classic African mines.

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Group of tarnowizite crystals, well defined, some of them interpenetrated. Milky tone and translucent. On a rocky matrix. From this classic locality and from the former Manchion (Barcelona) collection.

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Incredible specimen formed by a native copper matrix, covered by calcite white rhombohedrons, very well defined and translucent. They are accompanied by numerous crystals of up to 2 mm of cuprite: exceptional under the magnifying glass. Most show the forms of the dodecahedron, but also in octahedra. A remarkable example of this classic mine.

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Vuggy specimen with many cavities lined with sharp tabular wulfenite crystals. They are transparent to translucent, orange to yellow color, with green duftite throughout and malachite globular aggregates. The wulfenite crystals are coated on a druse of white calcite rhombohedral crystals. The crystals are undamaged. Very different than usual.

An interesting and showy Tsumeb specimen, puffball of lustrous primary malachite acicular crystals, nicely disposed on matrix covered with very glassy, colorless, calcite rhombohedral crystals.

A specimen from this classic locality of the world mineralogy totally different from the seen. It is an old piece of a German collection, made up of an array full of green mottramite nodules. One of its faces has been cut allowing to observe the aesthetic aggregates of intense green tone that remember leaves. He analyzed the sample and shows the presence of a certain percentage of As.The results are sent to the buyer. Something very different from Tsumeb ...

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Excellent growth of cyclic twins of cerussite, with very sharp crystals and well defined faces and edges, transparent to translucent, really brilliant... A very good classic with a notable quality and coming from past 60's of the XXth. Not easy to find nowadays.

Group of very sharp and well defined rhombohedral crystals of smithsonite. With an nice luster, transparent to translucent and a nice pink color. On a matrix with pyrite. Aesthetic specimen from Tsumeb.

Leiteite is a very interesting zinc arsenate, one of the preciated rare species for Tsumeb Mine, which is the type locality. This is a elongated foliated to fibrous with pearlescent sample, with some transparence to translucent. This specimen was collected early 80s on mine level 44. A superb and really large specimen of this very rare mineral.

Group of rhombohedral smithsonite crystals, with a pink color. Accompanied by a group of quartz crystals. From a classic worldwide locality for mineral collectors.

An exceptional specimen. It shows a well-formed cyclic twin of cerussite crystals, well defined, bright, colorless and transparent. They are disposed very aerial on a matrix with malachite and some other crystals of the same species, also twinned but in "V" shape. A full aesthetic specimen of this very appreciated mine.

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A group of cerussite crystals from this classic mine. It is a very interesting specimen because one of the crystals shows a very unusual number of faces. It is transparent, brilliant and with tabular shape. Color is slightly yellowish and with inclusions. With some ciclic twins. Good one. From the collector and dealer Luis "Louie" Antonio Bravi Teixeira Leite (1942-1999).

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Very rich group of smithsonite rhombohedral crystals. Light pink color, brilliant, transparent. A very interesting piece of this famous mine.

Very rich group of smithsonite rhombohedral crystals. Pink to reddish color, brilliant, transparent. A very interesting piece of this famous mine.

Group of very sharp cerussite crystals presenting an interesting displaced cyclic twin. The piece, with good size, is a floater, translucent and with an excellent luster. It is very rich in faces and very aesthetic. It comes from the classic Tsumeb mine. With labels from former collections.

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Specimen of native copper from this classic Namibian mine. It shows a very aesthetic growth between arborescent to skeletal, with elongated copper crystals. A pleasure under magnification. The copper color is natural, without chemical treatments. An old sample of a well-known and appreciated by collectors locality as it is Tsumeb.

A very rich tennantite specimen from the collector and dealer Luis "Louie" Antonio Bravi Teixeira Leite (1942-1999). It is formed by several interpenetrated tetrahedrons with good luster and defined faces and edges. Good sample to enjoy crystallography. A classic from a former collection.