Andelusite crystals in slate
Slate with pyrite
Iron pyrite crystals
Iron pyrite
Pyrite crystals
Pyrite crystals in their host rock
Arsenopyrite crystals
Lapis lazuli crystals
Iron pyrites
Sample of pyrite
Marcasite.
Pyrite
Banded iron ore
Cubic pyrite crystals
Marcasite stepped crystals
Pyrite crystals, Peru, South America
Iron pyrite crystal
Chalcopyrite specimen
Iridescent pyrite in a clay nodule
Iron pyrite, light micrograph
Marcasite mineral
Octahedral crystals of Pyrite
Fluorite crystals
Calcite bladed crystals
Pyritohedral crystals, close up
Ammonite fossil
Arsenopyrite with siderite and pyrite crystals
Sphalerite and pyrite
Iron pyrite crystals, SEM
Orpiment on pyrite
Hydrothermal quartz vein
Marcasite crystals on chalk groundmass
Quartz coated with silica
Iron pyrite crystal, SEM
Lapis lazuli
Marcasite
Deformed quartz veins in slate
Pyrite interspersed with quartz
Marcasite in chalk groundmass, close-up
Fool's Gold, iron pyrites crystals
Pyrite crystals, Spain
Quartz and Pyrite crystals
Deformation structure in schist
A fossil crinoid, Pentacrinites fossils
Fossil ammonite
Quartz and pyrite
Jarosite on rock
String of pyrite cubes
Cluster of pyrite cubes
Pyrite mineral stone
Sample of the mineral pyrite.
Polished lapis lazuli stone
Pyrite with Hematite, Italy
Pyrite Sun
Pyrite Stalagtite
Pyrite crystals on Shale
Ammonite, pyritized
Pyritized ammonite
Chalcopyrite mineral
Oxynoticeras ammonite fossil
Galenite in pyrite
Grey limestone and iron oxide
Chalcocite crystals
Arsenopyrite crystals, close-up
Pyrites Ammonite spiral Calcite crystals
Sphalerite
Black smoker hydrothermal vent
Pyrite bead necklace
Pyrite crystals, New Mexico, USA
Sphalerite and ankerite crystals
Tourmaline crystals in quartzite
Iron pyrites crystals (fool's gold)
Pyritised Ammonite Fossil
Trilobite triarthus eatoni legs preserved
Lapis lazuli, SEM
Rhodochrosite and pyrite
Tetrahedrite
Pyrite and quartz, crystalline
Stibnite
Lapis lazuli crystals I
Lapis lazuli crystals II
Extracting tinder from tinder fungus
Rock strain fringes, light micrograph
Iron pyrite cubic crystals in matrix, collected at Mina Victoria, Navajun La Rioja, Spain
Black tourmaline in mica schist
Native gold
Axinite
Sphalerite crystals
Nugget of Fool's Gold, iron pyrites
Welsh slate, close up
Pyrite on quartz
Zincblende
Crystals inside dinosaur fossils
Lapis lazuli specimen
Quartz in sphalerite
Selenite crystals
Galena
Tetrahedrite mineral specimen
Glaucodot crystals in groundmass
Rock concretions and minerals
Bismuthinite crystals in rock groundmass
Hedenbergite
Rock Types
Enargite on Pyrite,Taiwan
Pyrite cubes in host rock
Apatite crystals
Fluorspar crystals
Baryte crystals
Almandine
Twinned staurolite crystals
Twinned fluorite crystals
Calcite crystal
Galenite and marcasite
Sulphur crystals
Riebeckite crystals in groundmass
Prismatic parallel crystals of allanite
Clinochlore crystals in rock groundmass
Iron sulphide compound
黄鉄鉱
Quartz filled concretion
Chalcopyrite and quartz crystals
Aragonite crystals with sulphur
Pyrrhotite crystals, close-up
Cobaltite and chalcopyrite crystals
Hematite crystals
Slate waste
Marcasite, New York, USA
Brazilianite crystals in calcite
Actinolite crystals with talc
Garnet crystals on schist
Almandine crystals in schist
Aragonite floral crystals
Green spherical prehnite crystals
Magnesite crystals in groundmass
Dioptase crystals in groundmass
Tabular muscovite crystals and apatite
Vanadinite crystals in rock groundmass
Scapolite crystals in rock groundmass
Rhodonite crystals in rock groundmass
Sapphire crystals in rock groundmass
Sylvanite crystals in calcite groundmass