Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Category
Metamorphic And Igneous Rocks
Browse metamorphic and igneous rocks specimens identified by the Rock Identifier community.
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Mica (Muscovite) in Granite
Muscovite (KAl2(AlSi3O10)(OH)2)
mineral
Sodalite
Sodalite, Na8(Al6Si6O24)Cl2
mineral
Orthoclase Feldspar
KAlSi3O8 (Potassium aluminum silicate)
mineral
Sodalite
Na8(Al6Si6O24)Cl2
mineral
Chalcopyrite (Peacock Ore)
Copper Iron Sulfide (CuFeS2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Garnet (Almandine)
Almandine Fe3Al2(SiO4)3
mineral
Orthoclase Feldspar
KAlSi3O8 (Potassium Aluminum Silicate)
mineral
Biotite on Quartz
Biotite Mica (K(Mg,Fe)3AlSi3O10(F,OH)2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Specular Hematite
Specularite (Iron(III) oxide, Fe2O3)
mineral
Moonstone
Orthoclase Feldspar ((K,Na)AlSi3O8)
mineral
Corundum (Ruby Variety)
Corundum (Al2O3)
mineral
Hypersthene
Hypersthene (Enstatite variety), (Mg,Fe)SiO3
Mineral
Labradorite
Labradorite (Plagioclase Feldspar Series - (Ca, Na)(Al, Si)4O8)
mineral
White Zircon
Zircon (Zirconium silicate, ZrSiO4)
mineral
Peach Moonstone Sphere
Potassium Aluminum Silicate (KAlSi3O8)
mineral
Quartz (Smoky/Milky variety)
Silicon Dioxide (SiO2)
mineral
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Garnet
Garnet Group (Silicate mineral); general formula X3Y2(SiO4)3
Mineral
Prehnite
Prehnite - Ca2Al(AlSi3O10)(OH)2
mineral
Garnet (likely Almandine or Pyrope)
Garnet Group (Fe3Al2Si3O12 or Mg3Al2Si3O12)
mineral
Tumbled Rose Quartz
Quartz (SiO2)
mineral
Yellow Quartz
Silicon Dioxide (SiO2)
mineral
Red Garnet
Pyrope-Almandine series (Mg3Al2(SiO4)3 to Fe3Al2(SiO4)3)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Quartz (Milky or White Quartz)
Silicon Dioxide (SiO2)
mineral
Quartz (Milky Quartz/Citrine Type)
Silicon Dioxide (SiO2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Blue Apatite
Apatite - Ca5(PO4)3(F,Cl,OH)
mineral
Garnet
Almandine (Fe3Al2(SiO4)3)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Pyrite
Iron Disulfide (FeS2)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Gneiss
Granitic Gneiss
metamorphic
Epidote in Matrix
Epidote; Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
metamorphic
Nuummite
Nuummite (intergrowth of orthoamphiboles Anthophyllite and Gedrite, (Mg,Fe)7Si8O22(OH)2)
metamorphic