Rosell Minerales
RM1736 Octahedral fluorite with quartz
Kara-Oba W deposit, Betpakdala Desert, Karagandy, KazakhstanThis octahedral green fluorite is perched on a druse of quartz, with window forms. It shows defined faces and slightly curved edges. Color is intense with transparence. On a matrix of feldspar. This is from a small tungsten mine that was worked intermittently in the past including by the Russian government as a source for tungsten back in the 1980s. Few good minerals came out, and fewer still in this size and quality.Fluorescent under LW-UV.
Size: 5.7 x 4.8 x 4.2 cm.
Main crystal: 24 x 22 mm.
Fluorescent under long wave UV

RM1069 Bornite with chalcopyrite and calcite
Dzhezkazgan Mine, Dzhezkazgan, Karagandy, KazakhstanA former bornite specimen of this classic locality for the species. We observe two crystals with a good size and rounded faces and edges. They show an excellent luster and aesthetic iridescence. They are accompanied by a chalcopyrite in a matrix of calcite. A piece with history for the best display.
Size: 10.0 x 7.2 x 4.5 cm.
Main crystal: 20 x 17 mm.
Found in ca. 1990.
RM1023 Azurite
Dzhezkazgan Mine, Dzhezkazgan, Karagandy, Karaganda Oblast', KazakhstanA floater aggregate of lanceolated sharp azurite crystals with a more than excellent color and luster. From a mine not well represented in collections.
Size: 4.0 x 3.8 x 3.5 cm.
Found in 2007.
RM553 Azurite with malachite pseudomorph after azurite
Dzhezkazgan Mine, Dzhezkazgan, Karagandy, Karaganda Oblast', KazakhstanA very rich specimen formed by several azurite crystals that have been pseudomorphed by malachite showing original lanceolated forms, also tabular crystals with velvety faces due to fibrous malachite. Azurite, with deep color, crystals also observed partially converted into malachite. The brilliance of both minerals is really good, with superb aesthetics. From a mine not well represented in collections and which nowadays is difficult to obtain fine mineral specimens.
Size: 5,1 x 4,7 x 3,5 cm.
Found in 2007.
RM554 Azurite with malachite pseudomorph after azurite
Dzhezkazgan Mine, Dzhezkazgan, Karagandy, Karaganda Oblast', KazakhstanA floater aggregate of lanceolated sharp azurite crystals with an excellent color and luster, with small malachite pseudomorph after azurite growths. From a mine not well represented in collections.
Size: 3,5 x 3.0 x 2,7 cm.
Found in 2007.
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