Iron pyrite crystals
Pyrite crystals
Iron pyrite
Pyrite crystals in their host rock
Cubic pyrite crystals
Iron pyrite crystal
Pyrite
Marcasite.
Pyrite mineral stone
Marcasite stepped crystals
Sample of pyrite
Iron pyrites
Pyritohedral crystals, close up
Sphalerite and pyrite
Pyrite interspersed with quartz
Arsenopyrite crystals
Andelusite crystals in slate
Lapis lazuli crystals
Hydrothermal quartz vein
Fool's Gold, iron pyrites crystals
Nugget of Fool's Gold, iron pyrites
Iron pyrite, light micrograph
Banded iron ore
Marcasite
Marcasite in chalk groundmass, close-up
Octahedral crystals of Pyrite
Iridescent pyrite in a clay nodule
Iron pyrite crystal, SEM
Pyrite crystals, Peru, South America
Fluorite crystals
Calcite bladed crystals
Orpiment on pyrite
Chalcocite crystals
Arsenopyrite crystals, close-up
Chalcopyrite mineral
Slate with pyrite
Iron pyrites crystals (fool's gold)
Chalcopyrite specimen
Marcasite mineral
Iron pyrite crystals, SEM
Arsenopyrite with siderite and pyrite crystals
Quartz coated with silica
Stibnite
String of pyrite cubes
Cluster of pyrite cubes
Pyrite crystals, Spain
Quartz and Pyrite crystals
Quartz and pyrite
Lapis lazuli
Ammonite fossil
Pyrite and quartz, crystalline
Tetrahedrite
Pyrite Sun
Pyrite Stalagtite
Pyrite with Hematite, Italy
Galena
Marcasite crystals on chalk groundmass
Sample of the mineral pyrite.
Jarosite on rock
Sulphur crystals
Chalcopyrite and quartz crystals
Aragonite crystals with sulphur
Pyrrhotite crystals, close-up
Cobaltite and chalcopyrite crystals
Glaucodot crystals in groundmass
Bismuthinite crystals in rock groundmass
Tetrahedrite mineral specimen
Grey limestone and iron oxide
Twinned staurolite crystals
Galenite in pyrite
Polished lapis lazuli stone
Deformation structure in schist
A fossil crinoid, Pentacrinites fossils
Fossil ammonite
Aragonite crystals
Rhodochrosite and pyrite
Iron pyrite cubic crystals in matrix, collected at Mina Victoria, Navajun La Rioja, Spain
Crystalline sulphur
Sulphur crystal
Cobaltine mineral, cobalt ore
Bornite, close-up
Cinnabar on rock surface, close-up
Lump of yellow sulphur
Pyrite crystals on Shale
Pyrite crystals, New Mexico, USA
Tennantite
Bournonite
Calcite on sphalerite
Celestine crystals in sulphur groundmass
Chalcosite
Molybdenite in granite groundmass
Pyrite on quartz
Pyrite bead necklace
Azurite crystals
Pyrargyrite crystals
Gypsum stone
Garnet crystals on schist
黄鉄鉱
Rock concretions and minerals
Sphalerite
Enargite on Pyrite,Taiwan
Sphalerite crystals
Ammonite, pyritized
Pyritized ammonite
Oxynoticeras ammonite fossil
Black smoker hydrothermal vent
Lapis lazuli, SEM
Enargite mineral
Arsenopyrite
Chalopyllite crystals
Chalocite crystals
Gypsum and sulphur crystals
Lapis lazuli crystals I
Lapis lazuli crystals II
Sphalerite and ankerite crystals
Amethyst
Blue lace agate
Citrine
Quartz
Ruby
Quartz polished stone
Unakite mineral stone
Zeolite crystal
Hope Chrysoberyl gemstone
Blue sapphire stone
Blue Sapphire uncut stone
Crystalline limestone rock
Basaltic dyke rock
Opal gem necklace
Jade stone
Silver wire, mine specimen
Indicolite tourmaline faceted stone
Watermelon tourmaline crystalline stone
Hawk's Eye quartz stone
Tiger Eye quartz gemstone
Avanturine smooth gemstone
Schorl tourmaline crystal stone
Jasp agate cabuchon
Moss agate marble pattern
Cross section of hollow agate
Cross section of jasp agate
Cross section of agate
Agate polished cross section
Agate polished stone pattern
Mocha agate with veined pattern
Agate with round centre
Egyptian jasper stone
Brecciated Agate stone
Agate cross section and layers