Sphalerite and quartz - Steinbach, Haut-Rhin, France
Sphalerite on quartz from the Saint-Nicolas Mine.3.2 x 3 x 2.4 cm
Sphalerite on quartz from the Saint-Nicolas Mine.3.2 x 3 x 2.4 cm
Sphalerite crystal in perfect condition and of good size (1.5...
Epitaxial hematite and rutile. Piece from a discovery of a few...
Rare twinned diaspore crystals, both with very good...
A specimen composed of several quartz crystals, one of which...
Hyalite opal crown on basalt, in perfect condition, showing a...
Epitaxial hematite and rutile.3 x 2.5 cm
A rare find! Superb star rutile floating in epitaxy around...
Tabular "sandwich" wulfenite from the former Mežica mines in...
Fine, colorless, shiny stalactite calcite. 4,5 x 0,5 x 0,3 cm.
Thick, single-crystal azurite, perfect in color, brilliance...
A small, perfectly formed azurite single crystal of remarkable...
Very architectural set of rare acanthite crystals of a nice...
Rare acanthite crystals of beautiful size and brilliance, from...
Very architectural set of rare acanthite crystals of a...
Bright single crystal of colorless to slightly beige fluorite,...
Azurite in discoidal crystallization of 5,7 x 4,5 cm on white...
Almost complete geode (in two pieces) of brown to white...