Pyrite mineral stone
Pyrite
Iron pyrite crystals
Hydrothermal quartz vein
Iron pyrite
Pyrite crystals
Iron pyrite crystal
Cubic pyrite crystals
Pyrite crystals in their host rock
Nugget of Fool's Gold, iron pyrites
Fool's Gold, iron pyrites crystals
Marcasite stepped crystals
Pyritohedral crystals, close up
Polished lapis lazuli stone
Lapis lazuli
Octahedral crystals of Pyrite
Orpiment on pyrite
Sample of pyrite
Marcasite.
Marcasite
Lapis lazuli crystals
Pyrite bead necklace
Iron pyrites
Banded iron ore
Chalcopyrite mineral
Sample of the mineral pyrite.
Sulphur mineral crystal
Pyrite Sun
Pyrite Stalagtite
Iron pyrites crystals (fool's gold)
Pyrite with Hematite, Italy
Pyrite crystals, Spain
Quartz and Pyrite crystals
Iron pyrite, light micrograph
Slate with pyrite
Iridescent pyrite in a clay nodule
Marcasite mineral
Jarosite on rock
Iron pyrite crystal, SEM
Sphalerite and pyrite
Pyrite interspersed with quartz
Galenite in pyrite
Chalcopyrite specimen
Andelusite crystals in slate
Arsenopyrite crystals
Deformation structure in schist
A fossil crinoid, Pentacrinites fossils
Fossil ammonite
Ammonite fossil
Quartz and pyrite
Pyrite crystals, Peru, South America
Marcasite in chalk groundmass, close-up
Rhodochrosite and pyrite
黄鉄鉱
Arsenopyrite with siderite and pyrite crystals
Oxynoticeras ammonite fossil
Black smoker hydrothermal vent
Lapis lazuli specimen
Rock strain fringes, light micrograph
Enargite on Pyrite,Taiwan
Pyrite crystals, New Mexico, USA
Marcasite crystals on chalk groundmass
Lapis lazuli, SEM
Pyrite and quartz, crystalline
Pyrite crystals on Shale
Extracting tinder from tinder fungus
Quartz mineral stone
Marcasite bracelet
Iron pyrite cubic crystals in matrix, collected at Mina Victoria, Navajun La Rioja, Spain
Native sulphur
Iron pyrite crystals, SEM
Pyritised Ammonite Fossil
Trilobite triarthus eatoni legs preserved
Pyrites preservation of ammonite shell
Pyrites Ammonite spiral Calcite crystals
Opal mineral stone
Quartz polished stone
Star sapphire stone
Smokey Quartz gemstone
Tiger eye
Sand
Tetrahedrite
Fluorite crystals
Grey limestone and iron oxide
Calcite bladed crystals
Quartz coated with silica
Tennantite
Chalcocite crystals
Bournonite
Calcite on sphalerite
Arsenopyrite crystals, close-up
Stibnite
Mining core sample, Kenya
Malachite mineral stone
Obsidian mineral stone
Aventurine
String of pyrite cubes
Cluster of pyrite cubes
Hawk's Eye
Tiger's Eye
Tetrahedrite mineral specimen
Agate stone cross section and patterns
Flame agate stone pattern
Agate stone patterns
Three calcite crystals
Opal rock
Black opal gemstone
Topaz gemstone
Fuchsite mineral stone
Iron sulphide compound
Chalcopyrite and quartz crystals
Belt-hook carved in lapis lazuli
Cut agate
Quartz crystals
Quartz crystal
Red Aventurine Crystal Gemstone
Purple Fluorite Crystal Gemstone
Carnelian agate
Septarian nodule polished stone
Sodalite stone
Tiger eye gemstone
Tourmaline gemstones in quartz
Padparadscha gemstone
Slice of dyed agate
Dyed agate slice
Azurite copper ore stone
Citrine
Cut and polished jasper
Jasper
Opal
Peridot
Quartz
Opal gem necklace
Jade stone
Indicolite tourmaline faceted stone
Watermelon tourmaline crystalline stone
Hawk's Eye quartz stone
Tiger Eye quartz gemstone
Avanturine smooth gemstone
Schorl tourmaline crystal stone
Egyptian jasper stone
Botswana agate stones
Round agate geode
Round agate thunderegg
Two agate thundereggs
Agate slice
Blue lace agate
Botswana agate stone
Quartz filled concretion
Garnet crystals on schist