Clear Quartz
Silicon Dioxide (SiO2)
mineral
Category
Igneous And Metamorphic
Browse igneous and metamorphic specimens identified by the Rock Identifier community.
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Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Pyrite
Iron Disulfide (FeS2)
mineral
Quartz (Milky/Smoky variety)
Silicon Dioxide (SiO2)
mineral
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Chlorite Included Quartz
Silicon Dioxide (SiO2) with Chlorite (Mg,Fe,Li)6AlSi3O10(OH)8
mineral
Garnet (specifically Almandine or Pyrope)
Almandine (Fe3Al2Si3O12) or Pyrope (Mg3Al2Si3O12)
mineral
Quartz (Vein Quartz)
Silicon Dioxide (SiO2)
mineral
Raw Emerald in Matrix
Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities
mineral
Corundum (Ruby/Sapphire crystal)
Al2O3 (Aluminum Oxide)
mineral
Quartz with Chalcopyrite and Pyrite
Silicon Dioxide (SiO2) with Copper Iron Sulfide (CuFeS2)
mineral
Quartz (Grain/Fragment)
Silicon Dioxide (SiO2)
mineral
Rough Ruby
Corundum (Al2O3 with Chromium impurities)
mineral
Quartz
SiO2 (Silicon Dioxide)
mineral
Pyrite (on host rock)
Iron Sulfide (FeS2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Rainbow Moonstone with Black Tourmaline
White Labradorite with Schorl (Na,Ca)(Al,Si)4O8
mineral
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Quartz (specifically Milky or Clear Quartz)
Silicon Dioxide (SiO2)
mineral
Sunstone
Aventurine Feldspar ((Ca,Na)(Al,Si)4O8)
mineral
Pink Feldspar (Orthoclase)
Orthoclase Feldspar (KAlSi3O8)
mineral
Quartz (Milky/Common)
Quartz (Silicon Dioxide, SiO2)
mineral
Sodalite (Sunset Sodalite)
Sodalite: Na8(Al6Si6O24)Cl2
mineral
Banded Agate (Yellow Agate)
Silicon Dioxide (SiO2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Clear/White Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Muscovite Mica (Golden/Yellow variety)
KAl2(AlSi3O10)(F,OH)2
mineral
Quartz (Smoky/Milky variety)
Silicon Dioxide (SiO2)
mineral
Feldspar (specifically Orthoclase)
Potassium aluminum silicate (KAlSi3O8)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Greenstone
Metabasalt / Greenschist facies rock
Metamorphic
Epidote (Unakite variety)
Epidosite (Metasomatic rock containing Ca2(Al,Fe)3(SiO4)3(OH))
metamorphic
Gneiss
High-grade Metamorphic Gneiss
metamorphic
Gneiss
Foliated Metamorphic Rock (Gneiss)
metamorphic
Quartz Vein in Host Rock
Silicon Dioxide (SiO2) with host rock (often Schist or Basalt)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Aventurine
Silicon Dioxide (SiO2) with inclusions
metamorphic