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

Granite (Felsic intrusive igneous rock) — igneous

Granite

Felsic intrusive igneous rock

Sandstone (Clastic Sedimentary Rock) — sedimentary

Sandstone

Clastic Sedimentary Rock

Dalmatian Jasper (Peralkaline Quartz-Feldspar Porphyry with Arfvedsonite) — igneous

Dalmatian Jasper

Peralkaline Quartz-Feldspar Porphyry with Arfvedsonite

Kambaba Jasper (Crocodile Jasper) (Stromatolitic Rhyolite/Jasper (SiO2)) — sedimentary

Kambaba Jasper (Crocodile Jasper)

Stromatolitic Rhyolite/Jasper (SiO2)

Granite (Phaneritic plutonic rock (SiO2-rich)) — igneous

Granite

Phaneritic plutonic rock (SiO2-rich)

Greenstone (Protolith of basalt/gabbro (chlorite-epidote metamorphic facies)) — metamorphic

Greenstone

Protolith of basalt/gabbro (chlorite-epidote metamorphic facies)

Arsenopyrite with Schist Matrix (Arsenopyrite (FeAsS)) — mineral

Arsenopyrite with Schist Matrix

Arsenopyrite (FeAsS)

Granite (Thin Section) (Granite (Felsic Plutonic Rock)) — igneous

Granite (Thin Section)

Granite (Felsic Plutonic Rock)

Granite (Felsic intrusive igneous rock) — igneous

Granite

Felsic intrusive igneous rock

Sandstone (Clastic Sedimentary Rock) — sedimentary

Sandstone

Clastic Sedimentary Rock

Schist (Schist (Crystalline metamorphic rock)) — metamorphic

Schist

Schist (Crystalline metamorphic rock)

Rutilated Quartz (Silicon Dioxide (SiO2) with inclusions of Titanium Dioxide (TiO2)) — mineral

Rutilated Quartz

Silicon Dioxide (SiO2) with inclusions of Titanium Dioxide (TiO2)

Aragonite Star Cluster (Aragonite (Calcium Carbonate, CaCO3)) — mineral

Aragonite Star Cluster

Aragonite (Calcium Carbonate, CaCO3)

Blue Apatite (Fluorapatite / Apatite (Ca5(PO4)3(F,Cl,OH))) — mineral

Blue Apatite

Fluorapatite / Apatite (Ca5(PO4)3(F,Cl,OH))

Quartz and Quartzite (Silicon Dioxide (SiO2)) — mineral

Quartz and Quartzite

Silicon Dioxide (SiO2)

Granite Pebble (Intrusive igneous rock (Quartz, Feldspar, Mica)) — igneous

Granite Pebble

Intrusive igneous rock (Quartz, Feldspar, Mica)

Granite (Intrusive Igneous Rock) — igneous

Granite

Intrusive Igneous Rock

Granite (Intrusive Igneous Rock) — igneous

Granite

Intrusive Igneous Rock

Sandstone (Tumbled / Rounded) (Sedimentary Rock (Quartz arenite)) — sedimentary

Sandstone (Tumbled / Rounded)

Sedimentary Rock (Quartz arenite)

Chrysocolla in Cuprite (Sonoran Sunrise) (Cu2-xAlx(H2-xSi2O5)(OH)4·n(H2O) (Chrysocolla) and Cu2O (Cuprite)) — mineral

Chrysocolla in Cuprite (Sonoran Sunrise)

Cu2-xAlx(H2-xSi2O5)(OH)4·n(H2O) (Chrysocolla) and Cu2O (Cuprite)

Gneiss (specifically a Granitic Gneiss specimen) (Gneiss (high-grade metamorphic rock primarily composed of Quartz, Feldspar, and Biotite/Amphibole)) — metamorphic

Gneiss (specifically a Granitic Gneiss specimen)

Gneiss (high-grade metamorphic rock primarily composed of Quartz, Feldspar, and Biotite/Amphibole)

Heat-Treated Amethyst (Commercial Citrine) (Silicon Dioxide (SiO2) - Macro-crystalline Quartz) — mineral

Heat-Treated Amethyst (Commercial Citrine)

Silicon Dioxide (SiO2) - Macro-crystalline Quartz

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

Banded Gneiss

Gneiss (High-grade Regional Metamorphic Rock)

Quartz Pebbles (Silicon Dioxide (SiO2)) — mineral

Quartz Pebbles

Silicon Dioxide (SiO2)

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

Quartz (Druzy)

Silicon Dioxide (SiO2)

Chrysocolla-rich copper ore (Chrysocolla, a hydrated copper aluminosilicate (approximately (Cu,Al)₂H₂Si₂O₅(OH)₄·nH₂O), possibly mixed with malachite or turquoise-group minerals) — mineral

Chrysocolla-rich copper ore

Chrysocolla, a hydrated copper aluminosilicate (approximately (Cu,Al)₂H₂Si₂O₅(OH)₄·nH₂O), possibly mixed with malachite or turquoise-group minerals

Sandstone (Wonderstone) (Silicified Sandstone / Orthoquartzite with Liesegang rings) — sedimentary

Sandstone (Wonderstone)

Silicified Sandstone / Orthoquartzite with Liesegang rings

Selenite / Gypsum (Gypsum (CaSO4·2H2O)) — Mineral

Selenite / Gypsum

Gypsum (CaSO4·2H2O)

Siltstone Pebble with Veining (Siltstone) — sedimentary

Siltstone Pebble with Veining

Siltstone

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Garnet Schist (Almandine-bearing Mica Schist) — metamorphic

Garnet Schist

Almandine-bearing Mica Schist

Quartz with Spessartine Garnet and Iron Staining (Silicon Dioxide (SiO2) with Almandine-Spessartine (Mn3Al2(SiO4)3)) — mineral

Quartz with Spessartine Garnet and Iron Staining

Silicon Dioxide (SiO2) with Almandine-Spessartine (Mn3Al2(SiO4)3)

Biotite Schist (likely) (Biotite Schist (rock), Biotite (mineral)) — Metamorphic

Biotite Schist (likely)

Biotite Schist (rock), Biotite (mineral)

Pyrite-rich Ore (Pyrite (FeS2) with secondary minerals) — mineral

Pyrite-rich Ore

Pyrite (FeS2) with secondary minerals

Botryoidal Chalcedony (Agate) (Silicon Dioxide (SiO2)) — mineral

Botryoidal Chalcedony (Agate)

Silicon Dioxide (SiO2)

Tiger's Eye (Tiger's eye (Pseudomorph of Quartz after Crocidolite), SiO2) — metamorphic

Tiger's Eye

Tiger's eye (Pseudomorph of Quartz after Crocidolite), SiO2

Sandstone (likely River-tumbled Picture Sandstone) (Arenite (predominantly SiO2 with iron oxide impurities)) — sedimentary

Sandstone (likely River-tumbled Picture Sandstone)

Arenite (predominantly SiO2 with iron oxide impurities)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Hematite (Iron Ore) (Hematite (Fe2O3)) — mineral

Hematite (Iron Ore)

Hematite (Fe2O3)

Green Calcite (Calcium Carbonate (CaCO3)) — mineral

Green Calcite

Calcium Carbonate (CaCO3)

Malachite (Copper carbonate hydroxide, Cu2CO3(OH)2) — mineral

Malachite

Copper carbonate hydroxide, Cu2CO3(OH)2

Granitic Gneiss (Gneiss (high-grade metamorphic rock)) — metamorphic

Granitic Gneiss

Gneiss (high-grade metamorphic rock)