Rosell Minerales
RM2249 Coconinoite
Jomac Mine, White Canyon, San Juan Co., Utah, United StatesOn a sandstone matrix some yellow crusts of coconinoite formed by small tabular to micaceous crystals. This sample has been analyzed by SEM-EDS and we will send the results to the buyer.
Size: 8.2 x 7.4 x 4.2 cm.
Presents radioactive activity.

RM2167 Carnotite
Oljeto Mesa, Monument Valley-Navajo Country, Goulding, San Juan Co., Utah, United StatesFor uranium mineral collectors, this carnotite of an intense yellow color, formed by numerous globular aggregates of crystals, covering the surface of the sandstone matrix. An American classic, labeled E. Kucera (Barcelona).
Size: 5.7 x 2.7 x 1.3 cm.
Col. Manchion (Barcelona).
Presents radioactive activity.

RM1973 Coconinoite
Jomac Mine, White Canyon, San Juan Co., Utah, United StatesOn a sandstone matrix some yellow crusts of coconinoite formed by small tabular to micaceous crystals. This sample has been analyzed by SEM-EDS and we will send the results to the buyer.
Size: 5.0 x 3.1 x 1.2 cm.
Presents radioactive activity.

RM1937 Topaz
Topaz Mountain, Thomas Range, Juab, Utah, United StatesTopaz crystal aesthetically disposed on a rhyolite matrix. It shows several faces very well defined, with an excellent transparency and a uniform tone. From a classic locality.
Size: 7.5 x 8 x 5.5 cm.
Main crystal: 18 mm.
RM1843 Tyuyamunite
Butler No. 2 Mine, Crescent Creek, Garfield Co., Utah, United StatesVery esthetic aggregates of tabular tyuyamunite crystals. Very bright, intense yellow greenish color and contrasting with the matrix. A very representative specimen for the species.
Size: 3.7 x 2.7 x 1.1 cm.
Presents radioactive activity.

RM1711 Variscita
Little Green Monster Variscite Mine, Clay Canyon, Fairfield, Oquirrh Mts, Utah, United StatesA really aesthetic green variscite specimen from the occurrence at Clay Canyon. The polished specimen hosts a whitish crandallite. Variscite is known from dozens of localities around the world, but the specimens from Utah are amongst the better pieces from the United States. The species is named for the German district of Variscia, which was the medieval name for modern-day Vögtland.
Size: 9.8 x 5.5 x 4.6 cm. (2 unidades)
Ex. L. Daunis (Barcelona)
RM890 Topaz on Rhyolite
The Cove (Topaz Valley), Thomas Range, Juab Co., Utah, United StatesA huge size topaz crystal well disposed on the rhyolite matrix. It shows well defined faces and edges, excellent transparency and uniform toasted honey tone. It shows natural cleavage planes. A gem from a classic locality.
Size: 7.7 x 6.5 x 5.8 cm.
Main crystal: 38 x 8 mm.
RM805 Bixbyite
Topaz Mountain, Thomas Range, Juab, Utah, United StatesA brilliant and very sharp bixbyite crystal. A manganese oxyde well-known and appreciated by collector for its rich crystallographic forms. In this specimen we can see the cubic main form with vertex truncated by trapezohedron and a small triangular octahedron face. A crystallographic pleasure... Very aesthetically disposed on a volcanic rocky matrix. With an old display label.
Size: 4,5 x 4,0 x 3,7 cm.
Main crystal: 6 x 5 mm.

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