Pyrite interspersed with quartz
Quartz and pyrite
Quartz coated with silica
Sphalerite and pyrite
Pyrite on quartz
Iron pyrite
Pyrite crystals
Iron pyrite crystals
Pyrite crystals in their host rock
Pyrite and quartz, crystalline
Pyrite
Iron pyrite crystal
Cubic pyrite crystals
Sample of pyrite
Hydrothermal quartz vein
Pyritohedral crystals, close up
Marcasite stepped crystals
Iron pyrite crystal, SEM
Cluster of pyrite cubes
Iron pyrites
Marcasite in chalk groundmass, close-up
Quartz and Pyrite crystals
Marcasite.
Andelusite crystals in slate
Arsenopyrite crystals
Lapis lazuli crystals
Iron pyrite, light micrograph
Pyrite crystals, Peru, South America
Iridescent pyrite in a clay nodule
Chalcopyrite and quartz crystals
Pyrite mineral stone
String of pyrite cubes
Calcite bladed crystals
Fluorite crystals
Banded iron ore
Chalcopyrite specimen
Marcasite mineral
Iron pyrite crystals, SEM
Galenite and marcasite
Octahedral crystals of Pyrite
Orpiment on pyrite
Slate with pyrite
Fool's Gold, iron pyrites crystals
Arsenopyrite crystals, close-up
Stibnite
Tetrahedrite
Chalcocite crystals
Galenite in pyrite
Iron pyrites crystals (fool's gold)
Nugget of Fool's Gold, iron pyrites
Sulphur crystal
Arsenopyrite with siderite and pyrite crystals
Iron pyrite cubic crystals in matrix, collected at Mina Victoria, Navajun La Rioja, Spain
Chalcopyrite mineral
Tetrahedrite mineral specimen
Smoky quartz crystals
Lapis lazuli
Marcasite
Ammonite fossil
Rhodochrosite and pyrite
Pyrite Sun
Pyrite Stalagtite
Sphalerite
Galena
Pyrite with Hematite, Italy
Pyrite crystals, Spain
Rock concretions and minerals
Sample of the mineral pyrite.
Ammonite, pyritized
Pyritized ammonite
Microdiamond crystal
Quartz in sphalerite
Arsenopyrite
Celestine crystals in sulphur groundmass
Quartz crystals
Pyrites preservation of ammonite shell
Pyrite cubes in host rock
Tourmaline crystals in quartz
Realgar with grey quartz
Pyrite crystals.
Lapis lazuli crystals I
Lapis lazuli crystals II
Lapis lazuli, SEM
Grey limestone and iron oxide
Pyrite dodecahedrons II
Pyrite dodecahedrons I
Sphalerite on strontianite
Polished lapis lazuli stone
Jarosite on rock
Oxynoticeras ammonite fossil
Black smoker hydrothermal vent
Deformation structure in schist
A fossil crinoid, Pentacrinites fossils
Fossil ammonite
Pyrite crystals on Shale
Crystalline sulphur
Sulphur crystals
Rock strain fringes, light micrograph
Pyrite crystals, New Mexico, USA
Bornite, close-up
Pyrrhotite crystals, close-up
Cinnabar on rock surface, close-up
Molybdenite in granite groundmass
Cobaltite and chalcopyrite crystals
Glaucodot crystals in groundmass
Lump of yellow sulphur
Bismuthinite crystals in rock groundmass
Chalcosite
Covellite, thin section micrograph
Aragonite crystals with sulphur
Cobaltine mineral, cobalt ore
Microdiamond crystal, SEM
Rutilated quartz
Rock Types
Childrenite crystal in quartz
Calcite crystal
Marcasite crystals on chalk groundmass
Calcite on sphalerite
Tennantite
Bournonite
Quartz nodule, polarised light micrograph
Feldspar and quartz
Rose quartz mineral, artwork
Two agate thundereggs
Blue lace agate
Volcanic vent, New Zealand
Elbaite on albite and quartz
Pyritised Ammonite Fossil
Trilobite triarthus eatoni legs preserved
Realgar and orpiment
Schorl and quartz crystals in groundmass
Antimonite
Ralstonite
Iron and sulfur reaction
Magnetite, SEM
Bismuthinite
Enargite on Pyrite,Taiwan
Pyrite bead necklace
Richterite in quartz groundmass