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Mineral Specimens - page 11
Africa (excl. Morocco) - Tsumeb

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AFRICA


Andradite (Demantoid) and Topazolite from Ambanja

If you want to know more about the Andradite (Demantoid) from Ambanja please follow this link

Andradite (Demantoid) with Quartz
Andradite (Demantoid) with Quartz. Andradite (Demantoid) with Quartz.

TA50Q6: Dodecahedral crystals beveled by trapezohedron faces. They are isolated or in groups and are translucent, very bright and with an excellent green color. They are on matrix with Quartz, a very rare association on this locality.
Antetezambato, Ambanja, Diana, Antsiranana  Madagascar (08/2009)

Specimen size: 11.2 × 6.8 × 3.6 cm = 4.4” × 2.7” × 1.4”

Main crystal size: 1.2 × 0.7 cm = 0.5” × 0.3”


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Andradite (Demantoid)

TB31Q0: Two crystals on matrix, one of them clearly dominant. They are very rich in faces, with the dominant forms of the dodecahedron and the trapezohedron. With an intense green color, very bright and transparent.
Antetezambato, Ambanja, Diana, Antsiranana  Madagascar (11-12/2009)

Specimen size: 4.2 × 3.2 × 1.4 cm = 1.7” × 1.3” × 0.6”

Main crystal size: 1.2 × 0.8 cm = 0.5” × 0.3”


Andradite (Demantoid). Andradite (Demantoid).
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Andradite (Demantoid)
Andradite (Demantoid). Andradite (Demantoid).

EG87P2: A novelty in Ste. Marie 2009. Group of dodecahedral crystals of very well defined faces and edges and good color and luster and an excellent transparency. The matrix is formed by minute growths of the same garnet. The locality was not well known until recently, and the habit of this Demantoid is really unusual.
Antetezambato, Ambanja, Diana, Antsiranana  Madagascar (05-06/2009)

Specimen size: 4.4 × 2.8 × 1.5 cm = 1.7” × 1.1” × 0.6”

Main crystal size: 0.7 × 0.4 cm = 0.3” × 0.2”


Order
Andradite (Demantoid)

EA7P2: A novelty in Ste. Marie 2009. Group of dodecahedral crystals of very well defined faces and edges and good color, transparency and luster. The matrix is formed by minute growths of the same garnet. The locality was not well known until recently, and the habit of this Demantoid is really unusual.
Antetezambato, Ambanja, Diana, Antsiranana  Madagascar (05-06/2009)

Specimen size: 2.8 × 2 × 1.2 cm = 1.1” × 0.8” × 0.5”

Main crystal size: 0.5 × 0.4 cm = 0.2” × 0.2”


Andradite (Demantoid).
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Andradite (Demantoid)
Andradite (Demantoid). Andradite (Demantoid).
Andradite (Demantoid).

EF50P2: A novelty in Ste. Marie 2009. Group of dodecahedral crystals on matrix, one of them clearly dominant, isolated and very big for the variety. Faces and edges are very well defined and have very good color, luster and transparency. The locality was not well known until recently, and the habit of this Demantoid is really unusual.
Antetezambato, Ambanja, Diana, Antsiranana  Madagascar (05-06/2009)

Specimen size: 4.1 × 3 × 3.1 cm = 1.6” × 1.2” × 1.2”

Main crystal size: 1.3 × 1.2 cm = 0.5” × 0.5”


Order
Andradite (Demantoid) with Stilbite

TM103Q0: Group of dodecahedral crystals with small triangular faces of the octahedron (an unusual face on garnet crystals), with intense green color, very bright and transparent, on matrix with small white crystals of Stilbite.
Antetezambato, Ambanja, Diana, Antsiranana  Madagascar (05-06/2009)

Specimen size: 6.7 × 5 × 1.3 cm = 2.6” × 2.0” × 0.5”

Main crystal size: 1 × 0.6 cm = 0.4” × 0.2”


Andradite (Demantoid) with Stilbite. Andradite (Demantoid) with Stilbite.
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Andradite (Demantoid)
Andradite (Demantoid). Andradite (Demantoid).

EF51P2: A novelty in Ste. Marie 2009. Group of dodecahedral crystals of a considerable size for this variety of Andradite. Faces and edges of crystals that coat the matrix are very well defined and the color, transparency and luster are excellent. The locality was not well known until recently, and the habit of this Demantoid is really unusual.
Antetezambato, Ambanja, Diana, Antsiranana  Madagascar (05-06/2009)

Specimen size: 10.4 × 6.5 × 2.2 cm = 4.1” × 2.6” × 0.9”

Main crystal size: 0.7 × 0.7 cm = 0.3” × 0.3”


Order
Andradite (Topazolite)

TH14Q0: A novelty at Tucson 2010. A druse on matrix of crystals with the dominant forms of the dodecahedron and the trapezohedron, brown with greenish shades. The Topazolite variety has been well defined on this kind of sample and this will be reflected in a future article in Mineralogical Record.
Antetezambato, Ambanja, Diana, Antsiranana  Madagascar (05-06/2009)

Specimen size: 4.8 × 3.3 × 1.7 cm = 1.9” × 1.3” × 0.7”

Main crystal size: 0.9 × 0.6 cm = 0.4” × 0.2”


Andradite (Topazolite).
Order
Andradite (Topazolite)
Andradite (Topazolite).

TG6Q0: A novelty at Tucson 2010. A druse on matrix of crystals with the dominant forms of the dodecahedron and the trapezohedron and greenish brown color. The Topazolite variety has been well defined on this kind of sample and this will be reflected in a future article in Mineralogical Record.
Antetezambato, Ambanja, Diana, Antsiranana  Madagascar (05-06/2009)

Specimen size: 5.2 × 3.5 × 0.9 cm = 2.0” × 1.4” × 0.4”

Main crystal size: 0.5 × 0.4 cm = 0.2” × 0.2”


Sold
Andradite (Topazolite)

TL94Q0: A novelty at Tucson 2010. An alignment of good sized crystals, very rich of faces, with the dominant forms of the dodecahedron and the trapezohedron and greenish brown color. Their luster is extraordinary and they are with small white crystals of Stilbite. The Topazolite variety has been well defined on this kind of samples and this will be reflected in a future article in The Mineralogical Record.
Antetezambato, Ambanja, Diana, Antsiranana  Madagascar (10-11/2009)

Specimen size: 6.7 × 5.7 × 3.3 cm = 2.6” × 2.2” × 1.3”

Main crystal size: 1.2 × 1.2 cm = 0.5” × 0.5”


Andradite (Topazolite). Andradite (Topazolite).
Order
Andradite (Topazolite)
Andradite (Topazolite). Andradite (Topazolite).

TE51Q0: A novelty at Tucson 2010. A centered group of good-sized crystals, very rich in faces, with the dominant forms of the dodecahedron and the trapezohedron and greenish brown color. Their luster is extraordinary and they are with small white crystals of Stilbite. The Topazolite variety has been well defined on this kind of sample and this will be reflected in a future article in Mineralogical Record.
Antetezambato, Ambanja, Diana, Antsiranana  Madagascar (05-06/2009)

Specimen size: 8.7 × 6.2 × 3.7 cm = 3.4” × 2.4” × 1.5”

Main crystal size: 1.7 × 1.6 cm = 0.7” × 0.6”


Sold
Andradite (Topazolite) with Stilbite

TQ94Q0: A novelty at Tucson 2010. Druse on matrix of crystals very rich of faces, with the dominant forms of the dodecahedron and the trapezohedron and brown color, slightly greenish. Their luster is extraordinary and they are with small white concretions of Stilbite. The Topazolite variety has been well defined on this kind of samples and this will be reflected in a future article in The Mineralogical Record.
Antetezambato, Ambanja, Diana, Antsiranana  Madagascar (05-06/2009)

Specimen size: 8.7 × 7.2 × 2.9 cm = 3.4” × 2.8” × 1.1”

Main crystal size: 1.5 × 1.2 cm = 0.6” × 0.5”


Andradite (Topazolite) with Stilbite. Andradite (Topazolite) with Stilbite.
Order

Octahedral Fluorite with Quartz
Octahedral Fluorite with Quartz.

ED16Q7: Very aerial group of octahedral crystals with deep and uniform green color, between transparent and translucent and on Quartz matrix. The combo is very esthetic.
Riemvasmaak, Gordonia, Namaqualand, Northern Cape  South Africa (01/2010)

Specimen size: 4.3 × 2.7 × 2.6 cm = 1.7” × 1.1” × 1.0”

Main crystal size: 1.2 × 1.2 cm = 0.5” × 0.5”

Fluorescent long & short UV


Order
Octahedral Fluorite

EA97Q7: A plate of octahedral crystals, one of them clearly dominant, with centered inclusions. They are very transparent, having a very intense and uniform green color.
Riemvasmaak, Gordonia, Namaqualand, Northern Cape  South Africa (01/2010)

Specimen size: 8.7 × 5.2 × 4.1 cm = 3.4” × 2.0” × 1.6”

Main crystal size: 3.2 × 2.4 cm = 1.3” × 0.9”

Fluorescent long & short UV


Octahedral Fluorite. Octahedral Fluorite.
Order
Octahedral Fluorite with Quartz
Octahedral Fluorite with Quartz. Octahedral Fluorite with Quartz.

EC28Q7: Isolated and grouped octahedral crystals, transparent and with a very intense and uniform green color and partially coated by white Quartz.
Riemvasmaak, Gordonia, Namaqualand, Northern Cape  South Africa (01/2010)

Specimen size: 8.2 × 5.7 × 3.2 cm = 3.2” × 2.2” × 1.3”

Main crystal size: 1.7 × 1.5 cm = 0.7” × 0.6”

Fluorescent long & short UV


Euro:320 / US$402 / Yen:35340
Reservado
Octahedral Fluorite

EB68Q7: Group of transparent octahedral crystals with a very intense and uniform green color, some of them with centered inclusions.
Riemvasmaak, Gordonia, Namaqualand, Northern Cape  South Africa (01/2010)

Specimen size: 9.3 × 8.3 × 4.8 cm = 3.7” × 3.3” × 1.9”

Main crystal size: 2.6 × 2.2 cm = 1.0” × 0.9”

Fluorescent long & short UV


Euro:360 / US$452 / Yen:39760
Octahedral Fluorite. Octahedral Fluorite.
Reservado
Octahedral Fluorite
Octahedral Fluorite.

TP86N0: Group of very sharp octahedral crystals. They are transparent, bright and have an excellent, very intense green color. From a recent find in Riemvasmaak in 2008.
Riemvasmaak, Gordonia, Namaqualand, Northern Cape  South Africa (2008)

Specimen size: 5.4 × 4.7 × 2.1 cm = 2.1” × 1.9” × 0.8”

Main crystal size: 1.8 × 1.3 cm = 0.7” × 0.5”

Fluorescent long & short UV


Order
Octahedral Fluorite

TM97N0: Very aerial group of very sharp octahedral crystals. They are transparent, bright and have and excellent, very intense green color. From a recent find in Riemvasmaak in 2008.
Riemvasmaak, Gordonia, Namaqualand, Northern Cape  South Africa (2008)

Specimen size: 4.3 × 4.2 × 2.4 cm = 1.7” × 1.7” × 0.9”

Main crystal size: 2.1 × 1.5 cm = 0.8” × 0.6”

Fluorescent long & short UV


Octahedral Fluorite.
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Octahedral Fluorite
Octahedral Fluorite.

TH97N0: Very aerial group of very sharp octahedral crystals of a considerable size. They are transparent, bright and have and excellent, very intense green color. From a recent find in Riemvasmaak in 2008.
Riemvasmaak, Gordonia, Namaqualand, Northern Cape  South Africa (2008)

Specimen size: 6 × 5 × 3.6 cm = 2.4” × 2.0” × 1.4”

Main crystal size: 3.3 × 3 cm = 1.3” × 1.2”

Fluorescent long & short UV


Order
Octahedral Fluorite with Quartz

TG50N0: Group of very sharp octahedral crystals. They are transparent, bright, with inclusions, and have an excellent, very intense green color. Partially coated by white Quartz. From a recent find in Riemvasmaak in 2008.
Riemvasmaak, Gordonia, Namaqualand, Northern Cape  South Africa (2008)

Specimen size: 7 × 5.9 × 4.5 cm = 2.8” × 2.3” × 1.8”

Main crystal size: 2.2 × 1.6 cm = 0.9” × 0.6”

Fluorescent long & short UV


Octahedral Fluorite with Quartz. Front
Front
Octahedral Fluorite with Quartz. Side
Side
Octahedral Fluorite with Quartz. Top
Top
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Octahedral Fluorite
Octahedral Fluorite. Front
Front
Octahedral Fluorite. Side
Side
Octahedral Fluorite. Rear
Rear

TB93N0: An octahedral crystal of considerable size, of very sharp faces and edges. Translucent and bright, it has an excellent, very deep, green color. It is on a base of the same mineral. From a recent find in Riemvasmaak in 2008.
Riemvasmaak, Gordonia, Namaqualand, Northern Cape  South Africa (2008)

Specimen size: 6.7 × 6 × 4.8 cm = 2.6” × 2.4” × 1.9”

Main crystal size: 4.9 × 4.4 cm = 1.9” × 1.7”

Fluorescent long & short UV


Order
Epididymite with Aegirine

ED78P9: A museum sample, both for its size (enormous for the species) and for its quality. It consists of an aggregate of large white laminar crystals of Epididymite with a satiny luster and with fine black crystals of Aegirine. The sample has been carefully analyzed to differentiate it from Eudidymite, also present at the locality. We’ll send a copy of the analysis to the buyer.
Mount Malosa, Zomba  Malawi (07/2007)

Specimen size: 13.2 × 9.2 × 1.7 cm = 5.2” × 3.6” × 0.7”


Epididymite with Aegirine. Front
Front
Epididymite with Aegirine. Rear
Rear
Epididymite with Aegirine.
Order
Aegirine with Zircon and Feldspar
Aegirine with Zircon and Feldspar. Front
Front
Aegirine with Zircon and Feldspar. Rear
Rear
Aegirine with Zircon and Feldspar. Top
Top

EM46P4: A fan group of very elongated prismatic crystals with complex terminations, very bright and with a group of white Feldspar crystals (probably Microcline) partially covered by small doubly terminated crystals of Zircon on the base of the sample. For their luster and size of crystals this is an exceptional piece.
Mount Malosa, Zomba  Malawi (04/2009)

Specimen size: 17.5 × 3.9 × 2.9 cm = 6.9” × 1.5” × 1.1”


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Shattuckite with Quartz

TF27Q1: Botryoidal growths of Shattuckite of intense blue color with small crystals of Quartz. They are on a matrix of massive Quartz.
Kaokoveld Mine, Kaokoveld, Kunene  Namibia (2009)

Specimen size: 6.3 × 5.7 × 4.4 cm = 2.5” × 2.2” × 1.7”


Shattuckite with Quartz. Shattuckite with Quartz.
Order
Twinned Hambergite
Twinned Hambergite. Front
Front
Twinned Hambergite. Rear
Rear

TA64Q0: A novelty at Tucson 2010. A floater crystal with very well defined faces and edges, a very unusual shape for the species, with a very obvious twin, a very good luster and an excellent degree of transparency.
Tampo'ny llapa, Sahatany Valley, Ibitiny, Antsirabe  Madagascar (20/12/2009)

Specimen size: 3.3 × 1.8 × 0.7 cm = 1.3” × 0.7” × 0.3”


Order
Twinned Chrysoberyl

MB70L1: This floating twinned Chrysoberyl, which has well-defined contours, intense yellow color and brilliance, shows an assymmetric growth due probably to formation conditions. The two parts of the twin are well marked by the central joint and fine divergent growth striations. Good size and very original.
Lac Alaotra, Ambatondrazaka, Tamatave  Madagascar (2005)

Specimen size: 3.8 × 2.3 × 0.3 cm = 1.5” × 0.9” × 0.1”


Twinned Chrysoberyl. Front
Front
Twinned Chrysoberyl. Rear
Rear
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Twinned Calcite
Twinned Calcite.

TC67J3: Group of crystals from the August 2004, find. The aggregate is very attractive and we note the clearness of the crystals, the color and luster and, especially, the existence of twins formed by the contact of two rhombohedrons.
Sambava, Antsiranana  Madagascar (08/2004)

Specimen size: 6.7 × 4 × 3.7 cm = 2.6” × 1.6” × 1.5”

Main crystal size: 4.5 × 3 cm = 1.8” × 1.2”

Intense zoned fluorescence long & short UV


Order
Twinned Calcite

TB27G9: A group of slightly flattened crystals that have a very uncommon type of twinning. They are on a matrix of little Quartz crystals. With the Calcite, some white prismatic crystals of Laumontite have also grown.
Sambava, Antsiranana  Madagascar (08/2004)

Specimen size: 6.5 × 4.5 × 4 cm = 2.6” × 1.8” × 1.6”

Main crystal size: 1.5 × 1.3 cm = 0.6” × 0.5”

Intense fluorescence long & short UV


Twinned Calcite.
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Twinned Calcite
Twinned Calcite.

TC37F3: A novelty from Madagascar, but a common species: Calcite. An attractive group in which the sharpness of the crystals stands out. They stand out for their color, brilliance, and the presence of extraordinarily unusual twinning formed by the interpenetration of two rhombohedra.
Sambava, Antsiranana  Madagascar (08/2004)

Specimen size: 5.2 × 3.3 × 2.3 cm = 2.0” × 1.3” × 0.9”

Main crystal size: 2.6 × 1.7 cm = 1.0” × 0.7”

Fluorescent long & short UV


Order
Dioptase with Shattuckite

NR56P8: Botryoidal and spherical growths of small acicular crystals of Shattuckite with a single Dioptase crystal that has an excellent color and luster and very well defined faces and edges.
Tantara Mine, Kakounde, Likasi, Shaba  Congo D.R.

Specimen size: 6 × 4.9 × 3.2 cm = 2.4” × 1.9” × 1.3”

Main crystal size: 0.7 × 0.5 cm = 0.3” × 0.2”


Dioptase with Shattuckite.
Dioptase with Shattuckite. Dioptase with Shattuckite.
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Descloizite
Descloizite. Front
Front
Descloizite. Rear
Rear

TP76P6: Esthetic arborescent growth of flattened translucent crystals with sharp slightly curved edges, absolutely free of damage and partially coated by very small white crystals, probably Dolomite.
Berg Aukas, Grootfontein  Namibia (±1970)

Specimen size: 5 × 4.2 × 3.6 cm = 2.0” × 1.7” × 1.4”


Order
Cuprite with Quartz

TD99P1: The crystals have the very neat forms of the dodecahedron; very unusual, as isolated forms, for Cuprite. They are bright and have reddish reflections, contrasting with the white matrix of Quartz.
The specimen has been reviewed, photographed and published as a new discovery in the magazine ‘Rivista Mineralogica Italiana’ on page 280 in number 2009/4
Onganja, Seeis, Windhoek, Khomas  Namibia

Specimen size: 8.2 × 6.2 × 2.7 × cm = 3.2” × 2.4” × 1.1”

Main crystal size: 0.8 × 0.8 cm = 0.3” × 0.3”


Euro:480 / US$603 / Yen:53020
Cuprite with Quartz. Cuprite with Quartz.
Reservado
Phlogopite with Calcite
Phlogopite with Calcite.

TM63N2: A novelty of Tucson 2009. Flattened crystal of hexagonal profile on a matrix of pinkish Calcite. Very interesting is the fact that the crystals have some terminations. It has been analyzed and shown to be Phlogopite. We’ll send a copy of the analysis to the buyer of the sample.
Arandis, Swakopmund, Erongo Region  Namibia (2008)

Specimen size: 5.2 × 5.2 × 4.2 cm = 2.0” × 2.0” × 1.7”

Main crystal size: 4.6 × 3.8 cm = 1.8” × 1.5”

Calcite minor fluorescence long & short UV


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Fluorite

TX37L1: Group of well defined cubic Fluorite crystals, modified by octahedral triangular and dodecahedron rectangular faces. Transparent, showing dark geometric zonations on vertices. Green color is specially pleasant and intense.
Erongo Mountain, Usakos-Omaruru, Erongo  Namibia (2007)

Specimen size: 6.7 × 6.3 × 0.9 cm = 2.6” × 2.5” × 0.4”

Main crystal size: 0.7 × 0.6 cm = 0.3” × 0.2”

Minor fluorescence long & short UV


Fluorite. Fluorite.
Order

Olmiite

From the great Olmiite finds made in N'Chwaning Mine we offer this further material. The quality is, as you can see, much better than the Poldervaartites found in the Wessels Mine. Notably the color is much more intense and redder. On the subject of the color it is necessary to warn you that some of these new Olmiites show an intense color change depending of the kind of light used: in day light they become yellowish but in artificial light they are a spectacular strawberry red color.

Olmiite with Calcite
Olmiite with Calcite. Front
Front
Olmiite with Calcite. Side
Side

TM96N2: A novelty of Tucson 2009. Unusual groups of crystals of irregular contour, more or less oval-shaped. They are pink, and more intense on the terminations. They are on very acute scalenohedrons of Calcite and on matrix. They have come from a single geode. At first we believed they could be Poldervaartite due to the presence of the accompanying Calcite and the pinkish color of the crystals, but the analysis confirms that they are Olmiite (the manganoan end of the series) and not Poldervaartite (the calcian end). We’ll send a copy of the analysis to the buyer of the sample.
The specimen has been reviewed, photographed and published as a new discovery in the magazine ‘Mineral up’ on page 29 in number 2009/2.
N'Chwaning II Mine, upper levels, Kuruman, Kalahari  South Africa (12/2008)

Specimen size: 3.4 × 2.3 × 3.8 cm = 1.3” × 0.9” × 1.5”

Fluorescent long & short UV


Order
Olmiite with Calcite

TP47N2: A novelty of Tucson 2009. Unusual groups of crystals of irregular contour, more or less oval-shaped. They are pink, and more intense on the terminations. They are on very acute scalenohedrons of Calcite and on matrix. They have come from a single geode. At first we believed they could be Poldervaartite due to the presence of the accompanying Calcite and the pinkish color of the crystals, but the analysis confirms that they are Olmiite (the manganoan end of the series) and not Poldervaartite (the calcian end). We’ll send a copy of the analysis to the buyer of the sample.
N'Chwaning II Mine, upper levels, Kuruman, Kalahari  South Africa (12/2008)

Specimen size: 3.9 × 4 × 3.3 cm = 1.5” × 1.6” × 1.3”

Fluorescent long & short UV


Olmiite with Calcite.
Order
Olmiite with Quartz
Olmiite with Quartz. Olmiite with Quartz.

MA88N6: Globular growths of small crystals of Olmiite whose faces are very well defined and very bright, with two degrees of color, clear cream in some areas and slightly orange in others. On matrix, with small crystals of white Quartz.
N'Chwaning II Mine, 45 level, Kuruman, Kalahari  South Africa (10/2008)

Specimen size: 4.8 × 4.7 × 3.3 cm = 1.9” × 1.9” × 1.3”

Main crystal size: 1.2 × 1 cm = 0.5” × 0.4”

Fluorescence short UV & low fluorescence long UV

Type locality

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Olmiite

MG90M5: A novelty of Munich 2008. The sample forms globular growths of poorly defined crystals. In some zones is possible to recognize two phases of growth. In the first one the aggregate is more spherical and of deeper color. The second, external, phase has a lighter color and it is possible to see the crystal faces. The color of the growths between orange and yellow is different from the older pieces, classified then as Poldervaartite.
N'Chwaning II Mine, 45 level, Kuruman, Kalahari  South Africa (10/2008)

Specimen size: 8.6 × 5.7 × 4.9 cm = 3.4” × 2.2” × 1.9”

Main crystal size: 1.2 × 1.2 cm = 0.5” × 0.5”

Fluorescence short UV & low fluorescence long UV

Type locality

Olmiite. Front
Front
Olmiite. Rear
Rear
Olmiite.
Order
Olmiite
Olmiite. Front
Front
Olmiite. Rear
Rear

EG6K9: Excellent miniature. The prismatic crystals are similar to a wheatsheaf with good brilliance and color. On rocky matrix.
N'Chwaning II Mine, section 5 south, stope 46-47 roof, Kuruman, Kalahari  South Africa (01/2002)

Specimen size: 2.5 × 2 × 1.4 cm = 1.0” × 0.8” × 0.6”

Main crystal size: 1.2 × 0.8 cm = 0.5” × 0.3”

Type locality

Order
Olmiite

EM11E8: A double-spherical group of micro-crystals that have magnificent color and brilliance. A perfect sample if you want one a representative one in your collection. The very minimal matrix adds a little extra touch.
N'Chwaning II Mine, section 5 south, stope 46-47 roof, Kuruman, Kalahari  South Africa (01/2002)

Specimen size: 3.7 × 1.9 × 2 cm = 1.5” × 0.7” × 0.8”

Fluorescent long & short UV

Type locality

Olmiite. Fluorescent light (day light)
Fluorescent light (day light)
Olmiite. Bulb light
Bulb light
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Olmiite
Olmiite.

EJ12K9: Double globular growth, good brilliance. Color varies between orange and creamy. On rock matrix.
N'Chwaning II Mine, section 5 south, stope 46-47 roof, Kuruman, Kalahari  South Africa (01/2002)

Specimen size: 3.5 × 3 × 3 cm = 1.4” × 1.2” × 1.2”

Type locality

Order
Olmiite

EQ99: Excellent color, perfection, and esthetic: the form is really nice, it looks like a snowman. A exclusive and funny thing.
N'Chwaning II Mine, section 5 south, stope 46-47 roof, Kuruman, Kalahari  South Africa (01/02)

Specimen size: 2.5 × 1.7 × 1.7 cm = 1.0” × 0.7” × 0.7”

Main crystal size: 2.4 × 1.9 cm = 0.9” × 0.7”

Fluorescent long & short UV

Type locality

Olmiite.
Sold
Olmiite
Olmiite. Fluorescent light (day light)
Fluorescent light (day light)
Olmiite. Bulb light
Bulb light

EJ77C2: Good color. In this case a perfect miniature.
N'Chwaning II Mine, section 5 south, stope 46-47 roof, Kuruman, Kalahari  South Africa (01/02)

Specimen size: 4 × 3.5 × 2.2 cm = 1.6” × 1.4” × 0.9”

Main crystal size: 2 × 1.4 cm = 0.8” × 0.6”

Fluorescent long & short UV

Type locality

Order
Olmiite with Calcite

TR37E2: Recently new Olmiites were found in N'chwaning. The color is a little more orange than the first ones and these ones are on a matrix of small crystals of gemmy Calcite, making the whole specimen esthetically pleasing. In this case the crystals of Poldervaarite form large balls, well positioned on the matrix, aerial, and with a good contrast with the white Calcite matrix.

N'Chwaning II Mine, Kuruman, Kalahari  South Africa (11/03)

Specimen size: 3 × 2.7 × 1.8 cm = 1.2” × 1.1” × 0.7”

Main crystal size: 1.9 × 1.8 cm = 0.7” × 0.7”

Extremely fluorescent long & short UV

Type locality

Olmiite with Calcite.
Sold
Olmiite
Olmiite. Fluorescent light (day light)
Fluorescent light (day light)
Olmiite. Bulb light
Bulb light

EP38C0: Good crystal size and excellent transparency.
N'Chwaning II Mine, section 5 south, stope 46-47 roof, Kuruman, Kalahari  South Africa (01/02)

Specimen size: 4.9 × 4.4 × 2.5 cm = 1.9” × 1.7” × 1.0”

Main crystal size: 1.3 × 0.7 cm = 0.5” × 0.3”

Fluorescent long & short UV

Type locality

Order
Olmiite

EF62E7: From the first samples of Olmiite found, we have managed to obtain this great specimen. It has a large sphere of crystals, which show very good color and brilliance, and are on matrix. As you can see in the photo it is a great, high quality specimen.
N'Chwaning II Mine, section 5 south, stope 46-47 roof, Kuruman, Kalahari  South Africa (01/2002)

Specimen size: 5.4 × 3.9 × 3 cm = 2.1” × 1.5” × 1.2”

Main crystal size: 4 × 3.6 cm = 1.6” × 1.4”

Intense fluorescence long & short UV

Type locality

Olmiite. Fluorescent light (day light)
Fluorescent light (day light)
Olmiite. Bulb light
Bulb light
Sold
Olmiite
Olmiite. Fluorescent light (day light)
Fluorescent light (day light)
Olmiite. Bulb light
Bulb light

EK27C0: A pinker color than the other specimens, large size and very well positioned at the top of the matrix.
N'Chwaning II Mine, section 5 south, stope 46-47 roof, Kuruman, Kalahari  South Africa (01/02)

Specimen size: 5 × 3.5 × 2 cm = 2.0” × 1.4” × 0.8”

Main crystal size: 2.9 × 2.7 cm = 1.1” × 1.1”

Fluorescent long & short UV

Type locality

Order
Olmiite

EB54E8: This one stands out for the crystalline terminations, pyramidal and in complex groups that give it a spherical look, and the sharpness of the forms of the prismatic faces. Both the color and brilliance are magnificent. The position of the group on the matrix makes it very esthetic and adds the definitive touch.
N'Chwaning II Mine, section 5 south, stope 46-47 roof, Kuruman, Kalahari  South Africa (01/2002)

Specimen size: 4.8 × 2 × 3.4 cm = 1.9” × 0.8” × 1.3”

Fluorescent long & short UV

Type locality

Olmiite. Fluorescent light (day light)
Fluorescent light (day light)
Olmiite. Bulb light
Bulb light
Olmiite. Bulb light
Bulb light
Sold
Olmiite
Olmiite. Fluorescent light (day light)
Fluorescent light (day light)
Olmiite. Bulb light
Bulb light

EB2B9: Two photos showing its spectacular color change. Just minor matrix on its rear, almost a floater specimen complete in all sides with perfect form and excellent luster-color perfection. The crystals have a spherical form, they are gemmy and are formed by hundreds of small parallel grow crystals. A beauty!.
This specimen was photographed for the magazine ‘Mineralien Welt’ and appears on page 18 of number 1/2009.
N'Chwaning II Mine, section 5 south, stope 46-47 roof, Kuruman, Kalahari  South Africa (01/02)

Specimen size: 5.5 × 3.7 × 3.2 cm = 2.2” × 1.5” × 1.3”

Fluorescent long & short UV

Type locality

Order

Rutile and Hematite pseudomorph after Ilmenite crystals

Very interesting novelty of 2007 Munich Show: trigonal crystals of Ilmenite transformed into an intimate intergrowth of Rutile and Hematite. Microscopic examination shows that Rutile (reddish) occurs as a delicate network of needles which are oriented parallel to the basal sections of the former Ilmenite, while Hematite (black) forms the interstices.
If you want to know more about Rutile and Hematite pseudomorph after Ilmenite please follow this link

Rutile and Hematite pseudomorph after Ilmenite

MJ62K7: Epitaxial Rutile reticulated growth on a tabular former Ilmenite crystal pseudomorphed by Rutile and Hematite.
Mwinilunga  Zambia (05/2007)

Specimen size: 6.8 × 4.8 × 2 cm = 2.7” × 1.9” × 0.8”

With a copy of its analysis.


Rutile and Hematite pseudomorph after Ilmenite. Front
Front
Rutile and Hematite pseudomorph after Ilmenite. Rear
Rear
Order
Rutile and Hematite pseudomorph after Ilmenite
Rutile and Hematite pseudomorph after Ilmenite. Front
Front
Rutile and Hematite pseudomorph after Ilmenite. Rear
Rear

MM61K7: Epitaxial reticulated growth of Rutile on tabular former Ilmenite crystal pseudomorphed by Rutile and Hematite. Rutile presents a deep red color and brilliant multiple twins.
Mwinilunga  Zambia (05/2007)

Specimen size: 4.3 × 4.1 × 1.5 cm = 1.7” × 1.6” × 0.6”

Main crystal size: 4 × 3.2 cm = 1.6” × 1.3”

With a copy of its analysis.


Sold

FROM THE DESMOND SACCO COLLECTION


Text: Carles Curto (curator of the Geology Museum, Barcelona ) & Jordi Fabre
Assistance from John S. White (former Smithsonian curator)

 


Desmond Sacco is an authority when it comes to African as well as worldwide minerals. I met him many years ago at the Munich Show when it was in the city of Munich and Desmond was one of the stars of the show, buying the best that appeared there. His collection was legendary, not only because of the wonders we knew he would certainly have acquired given his position in the mines of the Kalahari Manganese Field (Hotazel, Wessels, N'Chwaning.) and his proximity to the legendary Tsumeb, but also because we saw what he was buying, and thus got an idea of the quality of his collection.

Many years and many mineral Munich shows have now passed and, for the first time, Desmond Sacco has decided to sell some specimens from his collection, starting with miniatures and thumbnails and some cabinet specimens. We have been fortunate to acquire the first batch, consisting of material from Tsumeb and the Kalahari, and with these we can make a virtual trip to the mines and minerals guided by Desmond and his collecting criteria.


From the web page of Desmond Sacco

Desmond does not have any labels for these specimens, so we can't include them. We know it would be better if he had a pedigree related with each specimen from his collection, but the specimens are "as they are," without any label, other than ours. Anyway, Desmond Sacco kindly revised this page, just to be sure that everything is accurate.

We hope you enjoy these samples, which represent an important part of mineralogy and mineral collecting in Africa.

Jordi Fabre

Rhodochrosite

TL66Q6: Spheroidal aggregates of very bright small lenticular crystals with a very intense pink color. We’ll send a copy of the analysis.
N'Chwaning II Mine, Kuruman, Kalahari  South Africa

Specimen size: 3.6 × 2 × 1.3 cm = 1.4” × 0.8” × 0.5”

Fluorescent long & short UV

Former Desmond Sacco collection

Euro:160 / US$196 / Yen:17590
Rhodochrosite.
Reservado
Smithsonite
Smithsonite.

TQ96Q6: Isolated rhombohedral crystal, a very infrequent case in Tsumeb, with very well defined faces and edges, bright, with colored inclusions and very aerial on a metallic matrix coated by the same Smithsonite. We’ll send a copy of the analysis.
Tsumeb Mine, Tsumeb  Namibia

Specimen size: 2.2 × 1.4 × 1.5 cm = 0.9” × 0.6” × 0.6”

Main crystal size: 1.3 × 1.2 cm = 0.5” × 0.5”

Former Desmond Sacco collection


Sold
Mimetite with Cuprite and Calcite

TD26Q6: Yellow globular growths and flattened crystals of hexagonal shape on matrix, with a small group of cube-octahedral crystals of Cuprite and white crystals of Calcite. We’ll send a copy of the analysis.
Tsumeb Mine, Tsumeb  Namibia

Specimen size: 4.1 × 3.2 × 2.9 cm = 1.6” × 1.3” × 1.1”

Main crystal size: 0.5 × 0.4 cm = 0.2” × 0.2”

Calcite fluorescent long & short UV

Former Desmond Sacco collection

Mimetite with Cuprite and Calcite. Mimetite with Cuprite and Calcite.
Order
Mimetite with Cuprite and Calcite
Mimetite with Cuprite and Calcite. Mimetite with Cuprite and Calcite.

TB66Q6: White laminar crystals of Mimetite of hexagonal shape with a Cuprite crystal with multiple growths and small crystals of Calcite, on matrix. We’ll send a copy of the analysis.
Tsumeb Mine, Tsumeb  Namibia

Specimen size: 3.9 × 2.9 × 2.2 cm = 1.5” × 1.1” × 0.9”

Main crystal size: 0.5 × 0.4 cm = 0.2” × 0.2”

Calcite fluorescent long & short UV

Former Desmond Sacco collection

Order
Willemite

TH27Q6: Translucent spheroidal growths of bluish-green color with acicular crystals of Goethite. We’ll send a copy of the analysis.
Tsumeb Mine, Tsumeb  Namibia

Specimen size: 2.9 × 1.8 × 1.4 cm = 1.1” × 0.7” × 0.6”

Fluorescence short UV & low fluorescence long UV

Former Desmond Sacco collection

Willemite.
Order
Gartrellite with Bayldonite and Azurite
Gartrellite with Bayldonite and Azurite.
Gartrellite with Bayldonite and Azurite. Gartrellite with Bayldonite and Azurite.

TC97Q6: Vivid yellow concertina-shaped growths of the rare species Gartrellite, with Azurite crystals and a group of Bayldonite with very well defined faces and edges which is very rare. We’ll send a copy of the analysis of the Gartrellite and the Bayldonite.
Tsumeb Mine, Tsumeb  Namibia

Specimen size: 3.4 × 2.1 × 2.1 cm = 1.3” × 0.8” × 0.8”

Main crystal size: 2.2 × 2.2 cm = 0.9” × 0.9”

Former Desmond Sacco collection


Sold
Adamite

TA97Q6: Exceptional for the locality. A group of yellow crystals, some of them doubly terminated. The main crystal, of a big size, has very well defined faces and edges. We’ll send a copy of the analysis.
Tsumeb Mine, Tsumeb  Namibia

Specimen size: 4.3 × 1.8 × 2.3 cm = 1.7” × 0.7” × 0.9”

Main crystal size: 2.2 × 1.2 cm = 0.9” × 0.5”

Minor fluorescence long & short UV

Former Desmond Sacco collection

Adamite.
Adamite.
Sold
Inesite with Calcite
Inesite with Calcite. Front
Front
Inesite with Calcite. Rear
Rear
Inesite with Calcite.

TF28Q3: Bright orange acicular crystals of Inesite. They are on Calcite which is on matrix. Calcite has grown in two successive generations, the first one is micro-crystalline and has a botryoidal development, the second crystallized in rhombohedrons.
N'Chwaning II Mine, Kuruman, Kalahari  South Africa

Specimen size: 6.3 × 3.8 × 2.3 cm = 2.5” × 1.5” × 0.9”

Main crystal size: 0.5 × 0.1 cm = 0.2” × 0.0”

Former Desmond Sacco collection

Calcite fluorescent long & short UV

Order
Hematite with Calcite and Celestine

TA47Q5: Twinned Hematite crystal with a very good luster and very well defined faces and edges, positioned esthetically on its matrix of white Calcite that gives a nice contrast to the piece.
Black Rock Mine, Black Rock, Kalahari  South Africa

Specimen size: 3.6 × 2.5 × 2.4 cm = 1.4” × 1.0” × 0.9”

Main crystal size: 2.2 × 1.6 cm = 0.9” × 0.6”

Former Desmond Sacco collection


Hematite with Calcite and Celestine. Front
Front
Hematite with Calcite and Celestine. Rear
Rear
Sold
Rhodochrosite
Rhodochrosite. Front
Front
Rhodochrosite. Rear
Rear

TC57Q5: Aggregate of crystals formed by the prism and the faces of flattened rhombohedra on the terminations. Color is intense, very vivid, pink with white zoning and the luster is excellent. The piece has great quality, both front and back.
N'Chwaning II Mine, Kuruman, Kalahari  South Africa

Specimen size: 3.6 × 2.7 × 2.2 cm = 1.4” × 1.1” × 0.9”

Main crystal size: 0.6 × 0.6 cm = 0.2” × 0.2”

Former Desmond Sacco collection

Fluorescent long & short UV

Euro:240 / US$295 / Yen:26390
Reservado
Olmiite with Natrolite

TV87Q3: Double globular growth of excellent color and luster. They are on a matrix of crystallized Natrolite. One of the first samples of Olmiite known in N’Chwanning in 1995.
N'Chwaning II Mine, Kuruman, Kalahari  South Africa (1995)

Specimen size: 2.7 × 2.6 × 2 cm = 1.1” × 1.0” × 0.8”

Main crystal size: 2.2 × 1.7 cm = 0.9” × 0.7”

Former Desmond Sacco collection

Minor fluorescence long & short UV

Olmiite with Natrolite. Front
Front
Olmiite with Natrolite. Top
Top
Order
Anglesite with Galena
Anglesite with Galena. Front
Front
Anglesite with Galena. Rear
Rear

TF28Q5: Parallel growths of crystals with very well defined faces and edges, a bluish-gray color, and implanted on a small matrix. We note the quality of the crystals due to the locality, in which the Anglesite is well known but, at the same time, scarce.
Tsumeb Mine, Tsumeb  Namibia

Specimen size: 4.2 × 2.2 × 2 cm = 1.7” × 0.9” × 0.8”

Main crystal size: 3.5 × 1.5 cm = 1.4” × 0.6”

Former Desmond Sacco collection


Order
Descloizite with Calcite

TG96Q3: Well known from Berg Aukas, Descloizite is an uncommon species at Tsumeb. The sample, an excellent miniature, is formed by bright aerial crystals of sharp crystals with very well defined faces and edges and on matrix.
Tsumeb Mine, Tsumeb  Namibia

Specimen size: 4.4 × 2.3 × 1.5 cm = 1.7” × 0.9” × 0.6”

Main crystal size: 1 × 0.7 cm = 0.4” × 0.3”

Former Desmond Sacco collection


Descloizite with Calcite. Front
Front
Descloizite with Calcite. Side
Side
Sold
Cuprite with Calcite
Cuprite with Calcite. Cuprite with Calcite.

TA86Q3: Isolated and grouped octahedral crystals of Cuprite, sharp and with very well defined faces and edges, translucent and deep red colored and on Calcite matrix.
Tsumeb Mine, Tsumeb  Namibia

Specimen size: 3.4 × 2.5 × 1.3 cm = 1.3” × 1.0” × 0.5”

Main crystal size: 0.5 × 0.4 cm = 0.2” × 0.2”

Former Desmond Sacco collection

Calcite with fluorescence short UV & low fluorescence long UV

Order
Cuprite with Malachite

TC27Q5: Group of dodecahedral crystals with very well defined faces and edges, with thin coatings of Malachite on some areas of the crystals and deep red transparency under a strong light.
Tsumeb Mine, Tsumeb  Namibia

Specimen size: 2.4 × 1.4 × 1.3 cm = 0.9” × 0.6” × 0.5”

Main crystal size: 1.7 × 1.4 cm = 0.7” × 0.6”

Former Desmond Sacco collection


Cuprite with Malachite. Front
Front
Cuprite with Malachite. Rear
Rear
Sold
Cuprian Adamite
Cuprian Adamite. Cuprian Adamite.

TE47Q3: Groups of crystals with excellent terminations, of deep green color, bright and on Limonite matrix.
Tsumeb Mine, Tsumeb  Namibia

Specimen size: 5.6 × 4.2 × 2 cm = 2.2” × 1.7” × 0.8”

Main crystal size: 0.5 × 0.2 cm = 0.2” × 0.1”

Former Desmond Sacco collection


Order
Cuprian Adamite

TJ48Q3: Radial group of crystals of exceptional size for Tsumeb. They are very well defined, with excellent terminations and a tabular crystal of Wulfenite on the back. This crystal of Wulfenite has a little damage on an edge but the Adamite is perfect. An excellent miniature.
Tsumeb Mine, Tsumeb  Namibia

Specimen size: 1.5 × 1.7 × 1.3 cm = 0.6” × 0.7” × 0.5”

Main crystal size: 0.5 × 0.2 cm = 0.2” × 0.1”

Former Desmond Sacco collection


Cuprian Adamite. Front
Front
Cuprian Adamite. Rear
Rear
Sold
Mimetite with Galena
Mimetite with Galena.

TD67Q5: Group of crystals of considerable length for the species, some of them doubly terminated, with vivid yellow color, translucent and very bright, formed by an elongated prism and the terminal faces of a pyramid.
Tsumeb Mine, Tsumeb  Namibia

Specimen size: 3.4 × 2.6 × 2.6 cm = 1.3” × 1.0” × 1.0”

Main crystal size: 2.4 × 0.3 cm = 0.9” × 0.1”

Former Desmond Sacco collection


Order
Mimetite with Pyrite

TA97Q3: Esthetic group of crystals, some of them doubly terminated, with excellent deep yellow color and good luster and transparency and placed on a matrix rich of Pyrite.
Tsumeb Mine, Tsumeb  Namibia

Specimen size: 3.2 × 2.2 × 1.9 cm = 1.3” × 0.9” × 0.7”

Main crystal size: 1.4 × 0.3 cm = 0.6” × 0.1”

Former Desmond Sacco collection


Mimetite with Pyrite. Mimetite with Pyrite.
Sold
Smithsonite with Cuprite and Malachite
Smithsonite with Cuprite and Malachite. Smithsonite with Cuprite and Malachite.

TB66Q5: Group of Cuprite crystals with very well defined faces and edges. The crystals are partially pseudomorphed by Malachite, on a group of clear cream deformed crystals of Smithsonite of spheroidal aspect.
Tsumeb Mine, Tsumeb  Namibia

Specimen size: 5.2 × 3.4 × 2.2 cm = 2.0” × 1.3” × 0.9”

Minor fluorescence long & short UV

Order
Smithsonite

TD47Q5: Crystal, on matrix, with very well defined faces and edges, unusually elongated for the species and formed by a ditrigonal prism and an acute terminal rhombohedron. We specially note the degree of transparency, rare with Smithsonite crystals.
Tsumeb Mine, Tsumeb  Namibia

Specimen size: 2.5 × 2.5 × 2 cm = 1.0” × 1.0” × 0.8”

Main crystal size: 1.8 × 0.4 cm = 0.7” × 0.2”

Former Desmond Sacco collection


Smithsonite. Front
Front
Smithsonite. Rear
Rear
Sold
Smithsonite
Smithsonite. Front
Front
Smithsonite. Rear
Rear

TE67Q5: Clear yellow crystal formed by a ditrigonal prism and a very acute terminal rhombohedron. The termination below, even not being especially defined, is complete.
Tsumeb Mine, Tsumeb  Namibia

Specimen size: 2.5 × 1.3 × 1.3 cm = 1.0” × 0.5” × 0.5”

Former Desmond Sacco collection


Order
Smithsonite

TC28Q3: Very aerial and esthetic group of bright acute rhombohedral crystals with very well defined faces and edges. Their color, deep pink, is really excellent.
Tsumeb Mine, Tsumeb  Namibia

Specimen size: 3.9 × 3.6 × 1.9 cm = 1.5” × 1.4” × 0.7”

Main crystal size: 1.3 × 0.8 cm = 0.5” × 0.3”

Former Desmond Sacco collection


Smithsonite. Front
Front
Smithsonite. Rear
Rear
Sold
Dioptase
Dioptase. Front
Front
Dioptase. Rear
Rear

TM97Q3: Group of crystals of a considerable size for the species. Some of them are doubly terminated and they all have very well defined faces and edges. Color and luster are excellent.
Tsumeb Mine, Tsumeb  Namibia

Specimen size: 2.2 × 2.6 × 1.6 cm = 0.9” × 1.0” × 0.6”

Main crystal size: 1.9 × 0.9 cm = 0.7” × 0.4”

Former Desmond Sacco collection


Sold
Malachite after Azurite

TX96Q3: A growth of two divergent crystals, one of them doubly terminated, with very well defined faces and edges, pseudomorphic after Azurite and with surface silky fibrous recrystallizations.
Tsumeb Mine, Tsumeb  Namibia

Specimen size: 2.7 × 1.8 × 1.6 cm = 1.1” × 0.7” × 0.6”

Main crystal size: 2.7 × 1.2 cm = 1.1” × 0.5”

Former Desmond Sacco collection


Malachite after Azurite. Front
Front
Malachite after Azurite. Side
Side
Order
Malachite with Calcite
Malachite with Calcite. Malachite with Calcite.

TZ27Q3: Globular felted growths, well known as “velvet”, on matrix. They have a very vivid color and are on a matrix rich of Calcite.
Tsumeb Mine, Tsumeb  Namibia

Specimen size: 5.7 × 4.3 × 1.9 cm = 2.2” × 1.7” × 0.7”

Main crystal size: 0.7 × 0.7 cm = 0.3” × 0.3”

Former Desmond Sacco collection


Sold
Malachite after Azurite with Duftite

TM68Q3: Group of thick prismatic crystals pseudomorphic after Azurite and coated, on the surface of the crystal faces, by silky fibrous recrystallizations, some of them forming fanlike groups. On matrix and with yellowish-green Duftite.
Tsumeb Mine, Tsumeb  Namibia

Specimen size: 4 × 5.4 × 3.5 cm = 1.6” × 2.1” × 1.4”

Main crystal size: 3.6 × 3.2 cm = 1.4” × 1.3”

Former Desmond Sacco collection


Malachite after Azurite with Duftite. Front
Front
Malachite after Azurite with Duftite. Side
Side
Order
Azurite with Malachite and Quartz
Azurite with Malachite and Quartz. Azurite with Malachite and Quartz.

TQ91Q3: The sample is from the famous Easter Pocket, found in 1994. It has sharp Azurite crystals with very well defined faces and edges. The crystals are translucent and have vivid indigo blue reflections. On matrix, with Malachite and Quartz.
Easter Pocket, 8 level, Tsumeb Mine, Tsumeb  Namibia (1994)

Specimen size: 6.4 × 4.9 × 3.2 cm = 2.5” × 1.9” × 1.3”

Main crystal size: 1.5 × 1.2 cm = 0.6” × 0.5”

Former Desmond Sacco collection


Order

TSUMEB


Calcite

TA66Q0: Very aerial polycrystalline botryoidal growths with white, slightly pinkish, color, on Limonite matrix.
Tsumeb Mine, Tsumeb  Namibia

Specimen size: 4.7 × 2.9 × 2.2 cm = 1.9” × 1.1” × 0.9”

Very fluorescent long & short UV


Calcite.
Order
Aragonite (Tarnowitzite) on Calcite
Aragonite (Tarnowitzite) on Calcite. Front
Front
Aragonite (Tarnowitzite) on Calcite. Top
Top

MF78I0: The crystal is a typical pseudohexagonal twin and it is formed by a short prism and the pseudopyramidal termination. It is esthetically grown on a matrix covered by concretions of Calcite contrasting with white Tarnowitzite, a lead-rich variety, not very common, of Aragonite.
Tsumeb Mine, Tsumeb  Namibia

Specimen size: 4.5 × 4.5 × 3.8 cm = 1.8” × 1.8” × 1.5”

Main crystal size: 2.5 × 2.3 cm = 1.0” × 0.9”

Fluorescent long & short UV


Sold
Olivenite with Azurite, Malachite and Duftite

TP63M0: Excellent color Olivenite crystal aggregate with a good size for the species and the locality. Accompanied by Malachite pseudomorphous after Azurite, also Azurite crystals with an excellent transparency and definition and green aggregates and concretions of Duftite. The Duftite has been analyzed and we will send a copy of the analysis to the buyer. A high quality specimen from a classic locality.
Tsumeb Mine, Tsumeb  Namibia

Specimen size: 5.7 × 5.3 × 3.2 cm = 2.2” × 2.1” × 1.3”

Main crystal size: 0.4 × 0.2 cm = 0.2” × 0.1”


Olivenite with Azurite, Malachite and Duftite.
Olivenite with Azurite, Malachite and Duftite. Olivenite with Azurite, Malachite and Duftite.
Sold
Mimetite on Smithsonite
Mimetite on Smithsonite. Mimetite on Smithsonite.
Mimetite on Smithsonite

EX97H1: Crystals, forming divergent sprays, have very well defined prism and pyramid, free of curvatures and deformations. They are transparent and have a vivid yellow color outstanding on the white Smithsonite matrix. The sample has a high quality and is from Martin Zinn collection.
Tsumeb Mine, Tsumeb  Namibia

Specimen size: 4.8 × 3.2 × 2.5 cm = 1.9” × 1.3” × 1.0”

Main crystal size: 0.6 × 0.2 cm = 0.2” × 0.1”


Sold
Twinned Cerussite

T92BE6: Spray of Cerussite crystals, a floater, and they have the typical criss-cross form of Cerussite from Tsumeb. Both the transparency and brilliance are good: so another good Cerussite twin from Tsumeb.
Tsumeb Mine, Tsumeb  Namibia

Specimen size: 4 × 3.7 × 2.6 cm = 1.6” × 1.5” × 1.0”

Main crystal size: 2.1 × 1.8 cm = 0.8” × 0.7”


Twinned Cerussite. Front
Front
Twinned Cerussite. Side
Side
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Azurite

Azurite with Malachite
Azurite with Malachite. Front
Front
Azurite with Malachite. Side
Side

MA66L5: Azurite crystal with an equidimensional form, very uncommon for Azurite, with well defined faces and edges, and very intense color. The upper crystal is a contact. On a Malachite matrix.
Tsumeb Mine, Tsumeb  Namibia

Specimen size: 4.3 × 3 × 2 cm = 1.7” × 1.2” × 0.8”

Main crystal size: 2.1 × 2 cm = 0.8” × 0.8”


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Azurite with Malachite and Cerussite

TA76H3: Multiple crystals forming parallel growths, very aerial and esthetic on the matrix with Cerussite and Malachite. The quality of luster and the color, deep blue with clearer reflections, is very good.
Tsumeb Mine, Tsumeb  Namibia

Specimen size: 3.3 × 2.5 × 2.2 cm = 1.3” × 1.0” × 0.9”


Azurite with Malachite and Cerussite. Front
Front
Azurite with Malachite and Cerussite. Top
Top
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Smithsonite

Smithsonite (cuprian)
Smithsonite (cuprian).

TJ9B6: Just look at the color! Are you looking for a colorful specimen from a classic locality, which is also a little bit different as other ones? This could be it. Yes, the crystal size are not enormous, but look at that color!
Tsumeb Mine, Tsumeb  Namibia

Specimen size: 6 × 5.7 cm = 2.4” × 2.2”


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Dioptase

Dioptase with Calcite

TP16H7: A very fine specimen, elegant and original. Crystals are doubly terminated, have excellent color and luster, and they are formed of the prism and the acute rhombohedron on terminations. They cover a stalactitic growth of Calcite that gives a very aerial shape to the sample.
Tsumeb Mine, Tsumeb  Namibia

Specimen size: 6 × 3.2 × 2.3 cm = 2.4” × 1.3” × 0.9”

Main crystal size: 0.7 × 0.3 cm = 0.3” × 0.1”

Calcite fluorescent long & short UV


Dioptase with Calcite. Front
Front
Dioptase with Calcite. Rear
Rear
Dioptase with Calcite.
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