Rock Identifier

Category

Igneous, Sedimentary, And Metamorphic

Browse igneous, sedimentary, and metamorphic specimens identified by the Rock Identifier community.

Garnet Schist (Garnet-bearing Mica Schist (variety of compositions, often Al2SiO5 with X3Y2(SiO4)3)) — metamorphic

Garnet Schist

Garnet-bearing Mica Schist (variety of compositions, often Al2SiO5 with X3Y2(SiO4)3)

Granodiorite (Gneissic texture) (Granodiorite (containing Quartz SiO2, Plagioclase Feldspar, and Biotite)) — igneous

Granodiorite (Gneissic texture)

Granodiorite (containing Quartz SiO2, Plagioclase Feldspar, and Biotite)

Schist (Schist) — metamorphic

Schist

Schist

Anthracite Coal (Anthracite (Carbon-rich metamorphic sedimentary rock)) — sedimentary

Anthracite Coal

Anthracite (Carbon-rich metamorphic sedimentary rock)

Biotite Schist with Garnet (Garnet-Biotite Schist) — metamorphic

Biotite Schist with Garnet

Garnet-Biotite Schist

Quartz / Quartzite (Silicon Dioxide (SiO2)) — mineral / metamorphic

Quartz / Quartzite

Silicon Dioxide (SiO2)

mineral / metamorphic

Biotite Schist (Biotite Mica Schist [K(Mg,Fe)3AlSi3O10(OH,F)2]) — metamorphic

Biotite Schist

Biotite Mica Schist [K(Mg,Fe)3AlSi3O10(OH,F)2]

Emerald (Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities) — mineral

Emerald

Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities

Milky Quartz (Quartz (Silicon Dioxide, SiO2)) — mineral

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Smoky Quartz (Quartz (Silicon Dioxide, SiO2)) — mineral

Smoky Quartz

Quartz (Silicon Dioxide, SiO2)

Amber and Citrine Quartz (Succinite (Amber) and Silicon Dioxide (SiO2 / Citrine)) — mineral

Amber and Citrine Quartz

Succinite (Amber) and Silicon Dioxide (SiO2 / Citrine)

Quartz (Milky or White Quartz) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky or White Quartz)

Silicon Dioxide (SiO2)

Pink Tumbled Quartz (Dyed) (Silicon Dioxide (SiO2)) — mineral

Pink Tumbled Quartz (Dyed)

Silicon Dioxide (SiO2)

Quartz / Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz / Clear Quartz

Silicon Dioxide (SiO2)

Sunstone (Oligoclase or Andesine (Labradorite) Feldspar (Na,Ca)(Si,Al)4O8) — mineral

Sunstone

Oligoclase or Andesine (Labradorite) Feldspar (Na,Ca)(Si,Al)4O8

Quartz (River Pebble) (Silicon Dioxide (SiO2)) — mineral

Quartz (River Pebble)

Silicon Dioxide (SiO2)

Rough Star Sapphire (Corundum) (Al2O3 (Aluminum Oxide)) — mineral

Rough Star Sapphire (Corundum)

Al2O3 (Aluminum Oxide)

Pink Sapphire (Corundum (Al2O3 with Chromium/Titanium/Iron traces)) — mineral

Pink Sapphire

Corundum (Al2O3 with Chromium/Titanium/Iron traces)

Amazonite (Potassium Feldspar (KAlSi3O8)) — mineral

Amazonite

Potassium Feldspar (KAlSi3O8)

Moonstone (Adularia (Potassium Aluminum Silicate, KAlSi3O8)) — mineral

Moonstone

Adularia (Potassium Aluminum Silicate, KAlSi3O8)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Smoky Quartz (Tumbled) (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz (Tumbled)

Silicon Dioxide (SiO2)

Quartz (Milky/Yellowish) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky/Yellowish)

Silicon Dioxide (SiO2)

Smoky Quartz (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz

Silicon Dioxide (SiO2)

Sodalite (Sodalite - Na8(Al6Si6O24)Cl2) — mineral

Sodalite

Sodalite - Na8(Al6Si6O24)Cl2

Bull Quartz (White Quartz) (Silicon Dioxide (SiO2)) — mineral

Bull Quartz (White Quartz)

Silicon Dioxide (SiO2)

Smoky Quartz (Smoky Quartz (SiO2)) — mineral

Smoky Quartz

Smoky Quartz (SiO2)

Banded Chalcedony (Agate) (Silicon Dioxide (SiO2) - Cryptocrystalline Quartz) — mineral

Banded Chalcedony (Agate)

Silicon Dioxide (SiO2) - Cryptocrystalline Quartz

Moonstone (Orthoclase Feldspar (KAlSi3O8) or Albite mixtures) — mineral

Moonstone

Orthoclase Feldspar (KAlSi3O8) or Albite mixtures

Citrine (Citrine (Silicon Dioxide, SiO2)) — mineral

Citrine

Citrine (Silicon Dioxide, SiO2)

Amethyst (Quartz variety) (Amethyst [Silicon Dioxide (SiO2)]) — mineral

Amethyst (Quartz variety)

Amethyst [Silicon Dioxide (SiO2)]

Orange Calcite (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite

Calcium Carbonate (CaCO3)

Orange Calcite (Calcite (Calcium Carbonate, CaCO3)) — mineral

Orange Calcite

Calcite (Calcium Carbonate, CaCO3)

Jasper (Red and Yellow) (Silicon Dioxide (SiO2) with iron oxide impurities) — sedimentary

Jasper (Red and Yellow)

Silicon Dioxide (SiO2) with iron oxide impurities

Mixed Tumbled Stones Collection (Mixed Silicates and Carbonates (Quartz, Amorphous Silica, Carbonates)) — multiple

Mixed Tumbled Stones Collection

Mixed Silicates and Carbonates (Quartz, Amorphous Silica, Carbonates)

Dalmatian Stone (Dalmatian Jasper (Aphanitic Igneous Rock with Arfvedsonite inclusions)) — igneous

Dalmatian Stone

Dalmatian Jasper (Aphanitic Igneous Rock with Arfvedsonite inclusions)

Epidote in Granite Gneiss (Epidote bearing Orthogneiss (Ca2(Al,Fe)3(SiO4)3(OH))) — metamorphic

Epidote in Granite Gneiss

Epidote bearing Orthogneiss (Ca2(Al,Fe)3(SiO4)3(OH))

Greenschist with Quartz Veining (Greenschist (commonly containing Chlorite, Actinolite, and Epidote)) — metamorphic

Greenschist with Quartz Veining

Greenschist (commonly containing Chlorite, Actinolite, and Epidote)

Lapis Lazuli (Lapis Lazuli (Complex aggregate of Lazurite, Calcite, and Pyrite)) — metamorphic

Lapis Lazuli

Lapis Lazuli (Complex aggregate of Lazurite, Calcite, and Pyrite)

Greenstone (Greenschist / Greenstone (Chlorite-Epidote facies)) — metamorphic

Greenstone

Greenschist / Greenstone (Chlorite-Epidote facies)

Lapis Lazuli (Lapis Lazuli (Mineral composition: Lazurite (Na,Ca)8(AlSiO4)6(SO4,S,Cl,OH)2, Calcite, and Pyrite)) — metamorphic

Lapis Lazuli

Lapis Lazuli (Mineral composition: Lazurite (Na,Ca)8(AlSiO4)6(SO4,S,Cl,OH)2, Calcite, and Pyrite)

Nephrite Jade (Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2)) — metamorphic

Nephrite Jade

Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2)