Rock Identifier

Category

Mineral Composite

Browse mineral composite specimens identified by the Rock Identifier community.

Learn about Mineral Composite in the encyclopedia

Glauconite

Hutcheonite

Halite

Sperrylite

Sea Sediment Jasper

Baddeleyite

Anatase

Brookite

Talc

Euxenite

Eltyubyuite

Buergerite

Amazonite (Potassium Feldspar (KAlSi3O8)) — Mineral

Amazonite

Potassium Feldspar (KAlSi3O8)

Fossil Shark Tooth (Chondrichthyes (Class)) — fossil

Fossil Shark Tooth

Chondrichthyes (Class)

Granite (Plutonic Igneous Rock) — igneous

Granite

Plutonic Igneous Rock

Sandstone Pebble (Sedimentary Rock (Quartzose Sandstone)) — sedimentary

Sandstone Pebble

Sedimentary Rock (Quartzose Sandstone)

Basalt (Extrusive Igneous Rock) — igneous

Basalt

Extrusive Igneous Rock

Granite (Intrusive Igneous Rock) — igneous

Granite

Intrusive Igneous Rock

Granite Pebble (Intrusive Igneous Rock) — igneous

Granite Pebble

Intrusive Igneous Rock

Granite (Granite) — igneous

Granite

Granite

K-Feldspar Granite Fragment (Granite (Alkali Feldspar-rich)) — igneous

K-Feldspar Granite Fragment

Granite (Alkali Feldspar-rich)

Granite (Felsic intrusive igneous rock) — igneous

Granite

Felsic intrusive igneous rock

Granite (Intrusive Igneous Rock) — igneous

Granite

Intrusive Igneous Rock

Granite (Intrusive Igneous Rock (composed primarily of quartz, alkali feldspar, and plagioclase)) — igneous

Granite

Intrusive Igneous Rock (composed primarily of quartz, alkali feldspar, and plagioclase)

Granite (Intrusive Igneous Rock) — igneous

Granite

Intrusive Igneous Rock

Tumbled Stone (Silicon dioxide / Various silicates) — mineral

Tumbled Stone

Silicon dioxide / Various silicates

Granite (Intrusive Igneous Rock) — igneous

Granite

Intrusive Igneous Rock

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

Quartz (Tumbled)

Silicon Dioxide (SiO2)

Quartz Sand (Beach Sand) (Silicon Dioxide (SiO2)) — sedimentary

Quartz Sand (Beach Sand)

Silicon Dioxide (SiO2)

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

River Pebble (Grantoid/Quartzite) (Quartz-rich igneous rock (Granitoid)) — igneous

River Pebble (Grantoid/Quartzite)

Quartz-rich igneous rock (Granitoid)

Mica Schist with Quartz (Crystalline Schist (SiO2 + KAl2(AlSi3O10)(OH)2)) — metamorphic

Mica Schist with Quartz

Crystalline Schist (SiO2 + KAl2(AlSi3O10)(OH)2)

Green Aventurine (Silicon Dioxide (SiO2) with inclusions of Fuchsite) — metamorphic

Green Aventurine

Silicon Dioxide (SiO2) with inclusions of Fuchsite

Banded Gneiss (Gneiss (High-grade Regional Metamorphic Rock)) — metamorphic

Banded Gneiss

Gneiss (High-grade Regional Metamorphic Rock)

Quartz-veined Metamorphic Rock (Quartz Vein in Phyllite or Schist (SiO2 in Silicate Matrix)) — metamorphic

Quartz-veined Metamorphic Rock

Quartz Vein in Phyllite or Schist (SiO2 in Silicate Matrix)

Green Aventurine (Silicon Dioxide (SiO2+KAl2(AlSi3O10)(OH)2)) — metamorphic

Green Aventurine

Silicon Dioxide (SiO2+KAl2(AlSi3O10)(OH)2)

Banded River Rock with Quartz Vein (Siltstone/Greywacke with Quartz (SiO2)) — sedimentary

Banded River Rock with Quartz Vein

Siltstone/Greywacke with Quartz (SiO2)

Sandstone with Quartz Vein (Arenite with SiO2 intrusion) — sedimentary

Sandstone with Quartz Vein

Arenite with SiO2 intrusion

Granite (Granite) — Igneous

Granite

Granite

Gneiss (Gneiss (High-grade metamorphic rock)) — metamorphic

Gneiss

Gneiss (High-grade metamorphic rock)

Granite (Granite) — igneous

Granite

Granite

River Pebble (Gneiss or Granite) (Metamorphic Rock (likely Gneiss or Granitic composition)) — metamorphic

River Pebble (Gneiss or Granite)

Metamorphic Rock (likely Gneiss or Granitic composition)

Larimar (Pectolite (a blue variety of Pectolite)) — Mineral

Larimar

Pectolite (a blue variety of Pectolite)

Turquoise (Turquoise (Hydrated copper aluminum phosphate, CuAl6(PO4)4(OH)8·4H2O)) — Mineral

Turquoise

Turquoise (Hydrated copper aluminum phosphate, CuAl6(PO4)4(OH)8·4H2O)

Specularite (Specular Hematite) (Iron Oxide (Fe2O3)) — mineral

Specularite (Specular Hematite)

Iron Oxide (Fe2O3)

Potassium Feldspar (Microcline) (KAlSi3O8) — mineral

Potassium Feldspar (Microcline)

KAlSi3O8

Iron (Hematite variety) (Iron (Fe) / Hematite (Fe2O3)) — mineral

Iron (Hematite variety)

Iron (Fe) / Hematite (Fe2O3)

Sandstone (River Cobble) (Clastic sedimentary rock (primarily SiO2)) — sedimentary

Sandstone (River Cobble)

Clastic sedimentary rock (primarily SiO2)

Actinolite (likely fibrous amphibole) (Actinolite, Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂; possibly an actinolite–tremolite specimen) — mineral

Actinolite (likely fibrous amphibole)

Actinolite, Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂; possibly an actinolite–tremolite specimen

Granite (Granite (a felsic intrusive igneous rock)) — Igneous Rock

Granite

Granite (a felsic intrusive igneous rock)

Pink Himalayan Salt Rock (Halite (NaCl with trace iron oxide minerals)) — mineral

Pink Himalayan Salt Rock

Halite (NaCl with trace iron oxide minerals)

Basalt River Stone with Mineral Crust (Aphanitic Mafic Igneous Rock) — igneous

Basalt River Stone with Mineral Crust

Aphanitic Mafic Igneous Rock

Weathered granitic rock fragment (Granite, predominantly quartz–feldspar–mica assemblage) — igneous

Weathered granitic rock fragment

Granite, predominantly quartz–feldspar–mica assemblage

Banded Rhyolite (likely Green Jasper/Agate variety) (Silicon Dioxide (SiO2) with mineral inclusions) — igneous

Banded Rhyolite (likely Green Jasper/Agate variety)

Silicon Dioxide (SiO2) with mineral inclusions