Pyrite and hematite - Valle Giove Mine, Rio Marina, Elba...
Superb dodecahedral pyrite crystal of extreme brilliance,...
Superb dodecahedral pyrite crystal of extreme brilliance,...
Bright orange-red crocodile crystals on limonite matrix.7 x 5...
Vanadinite brilliant and of a beautiful bright red color.2 x...
Pyromorphite with a nice apple green colour and very...
Electric blue cavansite crystals on stilbite, a nice little...
Group of translucent gypsum crystals from the old quarry of...
Group of hyaline quartz in perfect condition with a thick...
Gwindel quartz superbly twisted, slightly smoky, translucent,...
Well-balanced floating plate of very slightly smoky, shiny and...
Perfect small and very bright quartz with Cumberland habit....
Specimen composed of crystals of hyaline quartz partially...
Quartz very bright with inclusions of hydrocarbons (reacting...
Quartz crystal very slightly amethysted, with fine and...
Quartz crystal very slightly amethysted, with fine and...
Quartz crystal very slightly amethysted, with fine and...
Chlorite quartz plate of a beautiful brilliance and intact....
Piece composed of well-formed and shiny pyrite accompanied by...
Small set of quartz crystals partially covered with iron oxide...
Small set of quartz crystals partially covered with iron oxide...
Smoky quartz crystals well shined associated with muscovite....
Group of quartz and chlorite. The latter is present both in...
Native gold very finally crystallized in quartz, from a small...
Small piece but rich in native gold well crystallized,...
Group of colorless quartz sprinkled with chlorite, with...
Piece composed of translucent and brilliant smoked quartz. The...
Single crystal of smoky quartz, very translucent and of a...
Small plate of smoky quartz accompanied by lamellar crystals...
Group of three very slightly smoky quartz, translucent and...
Piece composed of dark green epidote crystals, very shiny and...
Aesthetic group of quartz, pyrite and chalcopyrite from Madan....