From Machow Mine, Tarnobrzeg, Poland Diverging sprays of transparent, golden barite crystals on matrix with yellow iron. The barite crystals are el...

From Huaron District, Cerro de Pasco Province, Pasco Department, Peru Large metallic Pyrite cubic crystals with golden calcite crystals overgrown o...

From La Grasta Mine, Delia, Caltanissetta Province, Sicily, Italy Colorless translucent prismatic celestine crystals with lustrous crystal faces, o...

Lustrous single crystal of pyrite with yellow-metallic color. The pyrite crystal is an unusual asymmetric shape that is apparently a combination of...

Spherical cluster of lustrous yellow-metallic pyrite crystals fully crystallized on all faces except with quartz crystals. The pyrite crystals are ...

From Huanzala Mine, Huallanca District, Huanuco Department, Peru Beautiful lustrous golden metallic Pyrite crystal cluster with well defined octahe...

From Huanzala Mine, Huallanca District, Huanuco Department, Peru Beautiful lustrous golden metallic Pyrite crystal cluster with well defined octahe...

This Pyrite from Isola d'Elba, Tuscan Archipelago, Livorno, Italy features fully crystallized, lustrous yellow-metallic crystals with a beautiful c...

This Pyrite from Isola d'Elba, Tuscan Archipelago, Livorno, Italy features fully crystallized, lustrous yellow-metallic crystals with a beautiful c...

Beautiful cluster of lustrous yellow-metallic pyrite crystals. The pyrite crystals are mostly cubic form with pyritohedral edge faces.    53.1 gram...

Classic old-European specimen with a lustrous combination of well defined pyritohedral crystal cluster of Italian pyrite on hematite matrix. This u...

From Daye Mine, Hubei Province, China   Large metallic mirror luster intergrown cubes of golden pyrite on quartz and pyrite enriched matrix lined w...

From Huaron District, Cerro de Pasco Province, Pasco Department, Peru Complex cluster of colorless quartz crystals inter grown with metallic yellow...

From Huaron District, Cerro de Pasco Province, Pasco Department, Peru Complex cluster of colorless quartz crystals inter grown with metallic yellow...

From Huaron District, Cerro de Pasco Province, Pasco Department, Peru Complex cluster of colorless quartz crystals inter grown with metallic yellow...

Classic specimen of yellow-metallic pyrite crystals to perched on rounded groups of specular dark red sphalerite crystals. This undamaged specimen ...

From Agrigento Province, Sicily, Italy Classic and beautiful plate of bright gemmy translucent rich yellow sulphur crystals over translucent white ...

From Agrigento, Sicily, Italy   Massive specimen of scintillating white aragonite covered with a cluster of gem translucent blocky bright yellow su...

From Huanuni mine, Huanuni, Dalence Province, Oruro Department, Bolivia Lustrous translucent terminated large gem green Vivianite crystal with side...