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RM780   Beryl (var. aquamarine) with smoky quartz, schorl and feldspar

Erongo Mts., Erongo, Namibia

Exceptional specimen of beryl, variety aquamarine, very aerial disposed on a matrix rich in developed smoky quartz crystals. Beryl shows very good transparency and blue color. Accompanied by another beryl doubly terminated in smoky quartz. Also with black schorl crystals and feldspar. The crystal has a small dent, but a very aesthetic piece.

Size: 9,5 x 9,0 x 3,7 cm.
Main crystal: 19 x 8 mm.


RM753   Twinned cerussite

Tsumeb mine (Tsumcorp), Tsumeb, Otjikoto, Namibia

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.

Size: 5,0 x 4,0 x 3,0 cm.

Fluorescent under long wave UV


RM707   Native copper

Tsumeb mine (Tsumcorp), Tsumeb, Otjikoto, Namibia

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.

Size: 7,7 x 5,2 x 3,2 cm.
Found in ca 1980's.


RM689   Tennantite with quartz

Tsumeb mine (Tsumcorp), Tsumeb, Otjikoto, Namibia

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.

Size: 8,3 x 6,0 x 5,0 cm.
Main crystal: 22 x 20 mm.
Found in ca. 1980's.

Ex-coll. Luis Leite.

RM697   Tennantite with quartz and dolomite

Tsumeb mine (Tsumcorp), Tsumeb, Otjikoto, Namibia

A tennantite rich specimen from the classic Tsumeb. We can observe some tetrahedron tennantite crystals with curved faces and defined edges, with luster. Some of them show broken areas, but aesthetics is quite good. Old specimen.

Size: 7,7 x 4,8 x 4,7 cm.
Main crystal: 18 x 17 mm.
Found in 1970's.


RM530   Twinned cerussite

Tsumeb (Tsumcorp) mine, Tsumeb, Otjikoto region, Namibia

A classic from Tsumeb mines. It shows a group of very sharp cerussite crystals forming this aesthetic cyclic twinned rosette. Excellent brilliance, good transparency and color from yellow to grayish tones, according to the light striking them. They are aerial disposed on the matrix and accompanied by other small cerussite crystals. It is unusual to get these twins on matrix.

Size: 6,5 x 5,4 x 4,5 cm.
Main crystal: 3,0 x 2,5 x 1,5 cm. (aggr)


RM452   Tsumcorite with duftite and mimetite

Tsumeb mine (Tsumcorp), Tsumeb, Otjikoto, Namibia

Tsumcorite is a rare lead, zinc and iron arsenate, with Type Locality in Tsumcorp mine (abbreviation of Tsumeb Corporation). This company worked this copper mine during many years, in the Tsumeb mining area. This specimen is very rich in intense orange-brown small crystals of tsumcorite. We can observe platy lanceolated tabular crystals. They are accompanied by mimetite globular aggregates partially covered by brilliant deep green duftite crystals. Huge size, great specimen and rare mineral, all combined. This specimen has been analyzed.

Size: 7,3 x 6,6 x 6,4 cm.