Rosell Minerales

You are in > Home > Minerals

Catálogo de minerales

RM1937   Topaz

Topaz Mountain, Thomas Range, Juab, Utah, United States

Topaz 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.


RM890   Topaz on Rhyolite

The Cove (Topaz Valley), Thomas Range, Juab Co., Utah, United States

A 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 States

A 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.