Aragonite - Minglanilla, Cuenca province, Spain.
Aragonite with violet hues in a pseudo-hexagonal macle,...
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Aragonite with violet hues in a pseudo-hexagonal macle,...
Small, perfectly finished, translucent aquamarine crystal.1.5...
Perfectly finished, translucent aquamarine crystal.2.1 x 0.5 x...
Perfectly finished, translucent aquamarine crystal with albite...
The piece is composed of a first generation of green fluorite...
Pale green fluorite plate crystallized in an “Aztec pyramid”...
Rare fluorite from Colombia with highly textured surfaces...
Gem-quality, twinned red spinel crystal from a locality that...
Gem-quality spinel crystal from a locality that produces some...
Numerous petals of black hematite with a beautiful metallic...
Two large green pargasite crystals set at 110° to each other,...
Piece composed of several small crystals of pale violet...
Small, very slightly smoky quartz of superb quality from a...
Translucent smoky quartz crystal of good size for the...
A combination of chalcopyrite, triglyph pyrite, sphalerite and...
Aerinite veneer from Saint Pandelon in the Landes region of...
Several crystals of proustite of good size (centimetre), and...
Slab of very shiny quartz very lightly sprinkled with...
Plate composed of multiple colorless fluorite crystals,...
Yellow fluorite with blue edging typical of its locality.2.5 x...
Fiber-terminated tourmaline crystal with superb blue...
Azurite composed of numerous brilliant crystals, set in...
Azurite composed of numerous brilliant crystals set in...
A high quality translucent axinite crystal accompanied by a...
Botryoidal quartz, commonly called "cluster chalcedony"...
Brilliant, well-formed pyrite dodecahedra, showing growth...
Small shiny hematite flakes on dolomite.8.5 x 6 x 5 cm
Small block of bright, surface-crystallized pyrite from the...
A group of bright axinite crystals from an unusual yet classic...
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...