Rosell Minerales
RM2870 Smithsonite
Tsumeb mine (Tsumcorp), Tsumeb, Otjikoto, NamibiaAn 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...
Size: 7 x 5 x 4 cm.
Main crystal: 1 cm.
Found in ±1985.
Col. Manchion (Barcelona).
Analyzed specimen with report

RM2844 Dioptase, duftite and calcite
Tsumeb mine (Tsumcorp), Tsumeb, Otjikoto, NamibiaIn 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.
Size: 6.4 x 6 x 5 cm.
Main crystal: 3 mm.
Found in ±1980.
RM2695 Duftite, cerussite and mimetite
Tsumeb mine (Tsumcorp), Tsumeb, Otjikoto, NamibiaOld 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.
Size: 8 x 4.2 x 2.4 cm.
Found in ± 1974.
Col. Joan Astor (Barcelona).
Classic locality

RM2412 Malachite and calcite
Tsumeb mine (Tsumcorp), Tsumeb, Otjikoto, NamibiaGlobular 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).
Size: 7.2 x 4.8 x 4.3 cm.
Main crystal: 0.5 cm.
Classic locality
RM2261 Anglesite
Tsumeb mine (Tsumcorp), Tsumeb, Otjikoto, NamibiaGemmy, 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).
Size: 6.5 x 2.8 x 2.5 cm.
Found in ca. 1976.
Col. J. Astor (Barcelona). Adq.Bailey (Madrid).
Classic locality

RM2260 Twinned cerussite
Tsumeb mine (Tsumcorp), Tsumeb, Otjikoto, NamibiaSuperb 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.
Size: 6 x 5.6 x 3.8 cm.
Main crystal: 4 cm.
Found in ca. 1975.
Col. J. Astor (Barcelona). Adq.Bailey (Madrid).
Classic locality

RM2232 Azurite and Cerussite
Tsumeb mine (Tsumcorp), Tsumeb, Otjikoto, NamibiaRich 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.
Size: 6.5 x 6 x 4 cm.
Main crystal: 1.6 cm.
Classic locality
RM2172 Tarnowitzite, Plumboan aragonite
Tsumeb mine (Tsumcorp), Tsumeb, Otjikoto, NamibiaGroup 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.
Size: 4 x 3.8 x 3.7 cm.
Main crystal: 2 cm.
Found in ±1987
#365 Col. Manchion (Barcelona).
Fluorescent under long wave UV

RM1720 Copper with calcite and cuprite
Tsumeb mine (Tsumcorp), Tsumeb, Otjikoto, NamibiaIncredible 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.
Size: 6.6 x 4.4 x 1.1 cm.
Col. J.M. Manchion (Barcelona) - No.337 (Mineralexpo Sants,1987)

RM1710 Wulfenite with duftite and malachite
Tsumeb mine (Tsumcorp), Tsumeb, Otjikoto, NamibiaVuggy 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.
Size: 8.0 x 4.5 x 6.2 cm.
Main crystal: 6 x 5 mm
Ex. M. Martínez (Barcelona)
RM1714 Malachite with calcite
Tsumeb mine (Tsumcorp), Tsumeb, Otjikoto, NamibiaAn interesting and showy Tsumeb specimen, puffball of lustrous primary malachite acicular crystals, nicely disposed on matrix covered with very glassy, colorless, calcite rhombohedral crystals.
Size: 7.5 x 5.2 x 4.7 cm.
Ex. M. Martínez (Barcelona)
RM1621 Mottramite
Tsumeb mine (Tsumcorp), Tsumeb, Otjikoto, NamibiaA 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 ...
Size: 8.7 x 8.5 x 6.5 cm.
Excol. Sepp Sclick (D)

RM1577 Twinned cerussite
Tsumeb mine (Tsumcorp), Tsumeb, Otjikoto, NamibiaExcellent 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.
Size: 6.4 x 5.5 x 4.6 cm.
Found in ±1960
RM1526 Smithsonite
Tsumeb mine (Tsumcorp), Tsumeb, Otjikoto, NamibiaGroup 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.
Size: 6.0 x 5.4 x 3.5 cm.
Main crystal: 7 x 4 mm.
RM1437 Leiteite
Tsumeb (Tsumcorp) mine, Nivel-Level 44, Tsumeb, Otjikoto, NamibiaLeiteite 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.
Size: 5.5 x 0.35 x 0.15 cm
Found in 1982.
RM874 Smithsonite
Tsumeb mine (Tsumcorp), Tsumeb, Otjikoto, NamibiaGroup of rhombohedral smithsonite crystals, with a pink color. Accompanied by a group of quartz crystals. From a classic worldwide locality for mineral collectors.
Size: 10.0 x 7.2 x 5.8 cm.
Main crystal: 7 x 5 mm.
Found in 1990's.
RM1101 Twinned cerussite with malachite
Tsumeb (Tsumcorp) mine, Tsumeb, Otjikoto, NamibiaAn 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.
Size: 4.0 x 3.3 x 2.3 cm.
Main crystal: 27 x 14 mm.

RM1102 Cerussite
Tsumeb (Tsumcorp) mine, Tsumeb, Otjikoto, NamibiaA 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).
Size: 5.4 x 4.0 x 3.7 cm.
Main crystal: 17 x 15 mm.
Ex-coll. Luis Leite. Nr. 523037.

RM1098 Smithsonite
Tsumeb (Tsumcorp) mine, Tsumeb, Otjikoto, NamibiaVery rich group of smithsonite rhombohedral crystals. Light pink color, brilliant, transparent. A very interesting piece of this famous mine.
Size: 4.0 x 3.5 x 2.5 cm.
Main crystal: 3 x 3 mm.
Found in 1959-1962.
RM1103 Smithsonite
Tsumeb (Tsumcorp) mine, Tsumeb, Otjikoto, NamibiaVery rich group of smithsonite rhombohedral crystals. Pink to reddish color, brilliant, transparent. A very interesting piece of this famous mine.
Size: 4.0 x 3.4 x 2.5 cm.
Main crystal: 4 x 3 mm.
RM753 Twinned cerussite
Tsumeb mine (Tsumcorp), Tsumeb, Otjikoto, NamibiaGroup 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, NamibiaSpecimen 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, NamibiaA 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, NamibiaA 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.
RM452 Tsumcorite with duftite and mimetite
Tsumeb mine (Tsumcorp), Tsumeb, Otjikoto, NamibiaTsumcorite 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.
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