Rock Types
Sphalerite and pyrite
Pyrite crystals in their host rock
Pyrite crystals
Pyritohedral crystals, close up
Arsenopyrite with siderite and pyrite crystals
Iron pyrites
Sample of pyrite
Iron pyrite crystals
Iron pyrite
Quartz and pyrite
Galenite in pyrite
Iron pyrite crystal, SEM
Iron pyrite crystals, SEM
Pyrite crystals, Peru, South America
Ammonite, pyritized
Andelusite crystals in slate
Pyritized ammonite
Iron pyrite crystal
Cubic pyrite crystals
Pyrite
Pyrite interspersed with quartz
Marcasite stepped crystals
Chalcopyrite specimen
Marcasite.
Iridescent pyrite in a clay nodule
Iron pyrite, light micrograph
Fluorite crystals
Arsenopyrite crystals
Marcasite mineral
Lapis lazuli crystals
Calcite bladed crystals
Quartz coated with silica
Sphalerite
Banded iron ore
Calcite crystal
Pyrite and quartz, crystalline
Marcasite in chalk groundmass, close-up
Pyrite dodecahedrons II
Pyrite dodecahedrons I
String of pyrite cubes
Cluster of pyrite cubes
黄鉄鉱
Pyrite with Hematite, Italy
Galenite and marcasite
Selenite mineral sample
Selenite swallow-tail crystals
Selenite crystals
Pyritised Ammonite Fossil
Trilobite triarthus eatoni legs preserved
Iron pyrites crystals (fool's gold)
Nugget of Fool's Gold, iron pyrites
Rock concretions and minerals
Actinolite crystals with talc
Mars Science Laboratory instrument
Lapis lazuli crystals I
Lapis lazuli crystals II
Fibrous crystals of riebeckite on rock groundmass
Pyrite cubes in host rock
Pyrites preservation of ammonite shell
Cave of Crystals, Naica Mine, Mexico
Cave of Swords, Naica Mine, Mexico
Pyrite bead necklace
Enargite on Pyrite,Taiwan
Melaphyr rock I
Melaphyr rock II
Basaltic dyke rock
Apophyllite
Tremolite crystals
透石膏
Octahedral crystals of Pyrite
Orpiment on pyrite
Steatite (soapstone)
Talc in groundmass, close-up
Galena
Stibnite
Chrysotile in groundmass, close-up
Muscovite
Selenite mineral, light micrograph
Selenite crystals, Winnipeg, Canada
Selenite crystals on a dried lake bed
Selenite crystal on a dried lake bed
Chemical crystals, polarised LM
Selenite crystal from Cave of Crystals
Spanish geologist Juan Manuel Garcia-Ruiz
Selenite gypsum
Pyrite crystals on Shale
Fossil Crinoid
Pyrites Ammonite spiral Calcite crystals
Rock strain fringes, light micrograph
Oxynoticeras ammonite fossil
Deformation structure in schist
A fossil crinoid, Pentacrinites fossils
Fossil ammonite
Ammonite fossil
Slate with pyrite
Pyrite mineral stone
Hydrothermal quartz vein
Fool's Gold, iron pyrites crystals
滑石
Jarosite on rock
Limburgite
Aquamarine in muscovite matrix, close
Moh's Hardness Scale
View of a sample of selenite, a form of gypsum
Olivine inclusion in basalt
Dolerite rock crystals, light micrograph
Zeophyllite
Pectolite
Pink-white chabazite in basalt groundmass
Sample of basalt
Gypsum rock
Crystals inside dinosaur fossils
Pyrite on quartz
Lepidolite
Golden selenite
Basaltic dyke, polarised light micrograph
Iron pyrite cubic crystals in matrix, collected at Mina Victoria, Navajun La Rioja, Spain
Hands holding pyrite, otherwise called fools gold
Sample of the mineral pyrite.
Polished lapis lazuli stone
Lapis lazuli, SEM
Rhodochrosite and pyrite
Pyrite crystals, New Mexico, USA
Pyrite Sun
Pyrite crystals, Spain
Pyrite Stalagtite
Quartz and Pyrite crystals
Pyrite crystals.
Lapis lazuli specimen
Lapis lazuli
Marcasite