Rock Identifier

Category

Mineral_rock

Browse mineral_rock specimens identified by the Rock Identifier community.

Learn about Mineral_rock in the encyclopedia

Rock Salt

Calc-Silicate Rock

Calc-Silicate Rock

Halite

Dolomite

Gypsum

Coal

Claystone

Carbonatite

Serpentinite

Skarn

Schist

Shale

Gneiss with Quartz Vein (Metamorphic Gneiss) — metamorphic

Gneiss with Quartz Vein

Metamorphic Gneiss

Pyrite in Matrix with Copper Alterations (Iron Sulfide (FeS2) with secondary Copper carbonates/sulfides) — mineral

Pyrite in Matrix with Copper Alterations

Iron Sulfide (FeS2) with secondary Copper carbonates/sulfides

Red Sandstone (Sandstone (Quartz Arenite with Iron Oxide)) — sedimentary

Red Sandstone

Sandstone (Quartz Arenite with Iron Oxide)

Fluorite (Calcium Fluoride (CaF2)) — mineral

Fluorite

Calcium Fluoride (CaF2)

Sandstone with Mineral Veining or Crust (Sedimentary Sandstone (mostly SiO2 with Fe2O3 tinting)) — sedimentary

Sandstone with Mineral Veining or Crust

Sedimentary Sandstone (mostly SiO2 with Fe2O3 tinting)

Turquoise (Turquoise - CuAl6(PO4)4(OH)8·4H2O) — mineral

Turquoise

Turquoise - CuAl6(PO4)4(OH)8·4H2O

Granite (Intrusive Igneous Rock) — igneous

Granite

Intrusive Igneous Rock

Pyrite in Quartz (Iron Sulfide (FeS2) in Silicon Dioxide (SiO2)) — Mineral

Pyrite in Quartz

Iron Sulfide (FeS2) in Silicon Dioxide (SiO2)

Granite (Felsic intrusive igneous rock) — igneous

Granite

Felsic intrusive igneous rock

Granite (Felsic intrusive igneous rock) — igneous

Granite

Felsic intrusive igneous rock

Granite (Felsic intrusive igneous rock) — igneous

Granite

Felsic intrusive igneous rock

Quartz Pebble (Silicon dioxide (SiO2)) — sedimentary

Quartz Pebble

Silicon dioxide (SiO2)

Milky Quartz Vein with Iron Staining (Silicon Dioxide (SiO2)) — mineral

Milky Quartz Vein with Iron Staining

Silicon Dioxide (SiO2)

$Veined Quartzite / Vein-filled Sedimentary Rock (Siliciclastic rock with iron oxide-filled fractures) — sedimentary$

Veined Quartzite / Vein-filled Sedimentary Rock

Siliciclastic rock with iron oxide-filled fractures

Red Sandstone (Ferruginous Sandstone (SiO2 with Fe2O3)) — sedimentary

Red Sandstone

Ferruginous Sandstone (SiO2 with Fe2O3)

Pyrite (Iron Disulfide (FeS2)) — mineral

Pyrite

Iron Disulfide (FeS2)

Sandstone (Ferruginous) (Arenite with Iron Oxide cement (SiO2 + Fe2O3)) — sedimentary

Sandstone (Ferruginous)

Arenite with Iron Oxide cement (SiO2 + Fe2O3)

Banded gneiss pebble (Gneiss, composed chiefly of quartz, feldspar, and mica/amphibole) — metamorphic

Banded gneiss pebble

Gneiss, composed chiefly of quartz, feldspar, and mica/amphibole

Turquoise in Matrix (Hydrous phosphate of copper and aluminium, CuAl6(PO4)4(OH)8·4H2O) — mineral

Turquoise in Matrix

Hydrous phosphate of copper and aluminium, CuAl6(PO4)4(OH)8·4H2O

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

Greenstone (Metamorphic mafic rock (greenschist facies)) — metamorphic

Greenstone

Metamorphic mafic rock (greenschist facies)

Mahogany Obsidian (Volcanic Glass with Hematite/Magnetite inclusions) — igneous

Mahogany Obsidian

Volcanic Glass with Hematite/Magnetite inclusions

Quartz with Iron Oxide Inclusions (Silicon dioxide with limonite/hematite (SiO2)) — mineral

Quartz with Iron Oxide Inclusions

Silicon dioxide with limonite/hematite (SiO2)

Conglomerate / Breccia Matrix (Aggregated Rock) (Sedimentary Breccia / Conglomerate) — sedimentary

Conglomerate / Breccia Matrix (Aggregated Rock)

Sedimentary Breccia / Conglomerate

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

Gneiss

Gneiss (High-grade metamorphic rock)

Quartz Pebble (Silicon Dioxide (SiO2)) — sedimentary

Quartz Pebble

Silicon Dioxide (SiO2)

Limonite with Gold-bearing Quartz (Hydrated Iron Oxide Hydroxide, FeO(OH)·nH2O) — mineral

Limonite with Gold-bearing Quartz

Hydrated Iron Oxide Hydroxide, FeO(OH)·nH2O

River Cobble (likely Basalt or Greenstone) (Mafic Igneous Rock (with possible chloritic alteration)) — igneous

River Cobble (likely Basalt or Greenstone)

Mafic Igneous Rock (with possible chloritic alteration)

Sandstone (Tumbled/River Pebble) (Arenite (composed primarily of SiO2)) — sedimentary

Sandstone (Tumbled/River Pebble)

Arenite (composed primarily of SiO2)

Galena (Lead sulfide (PbS)) — mineral

Galena

Lead sulfide (PbS)

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

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Serpentine (Antigorite, Lizardite, and Chrysotile (Mg3Si2O5(OH)4)) — metamorphic

Serpentine

Antigorite, Lizardite, and Chrysotile (Mg3Si2O5(OH)4)

Malachite (Copper(II) carbonate hydroxide [Cu2CO3(OH)2]) — mineral

Malachite

Copper(II) carbonate hydroxide [Cu2CO3(OH)2]

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

Quartz (Milky/Tan)

Silicon Dioxide (SiO2)

Sandstone Concretion (Omar or Nut Rock) (Sedimentary Concretion (specifically an 'Omarolluk' or Omar)) — sedimentary

Sandstone Concretion (Omar or Nut Rock)

Sedimentary Concretion (specifically an 'Omarolluk' or Omar)

Quartz Cobble (River Rock) (Silicon Dioxide (SiO2)) — mineral

Quartz Cobble (River Rock)

Silicon Dioxide (SiO2)

Asphalt (Bituminous Rock) (Natural bitumen or Bituminous limestone/sandstone) — sedimentary

Asphalt (Bituminous Rock)

Natural bitumen or Bituminous limestone/sandstone

Amygdaloidal Basalt (Amygdaloidal Basalt (Mafic Volcanic Rock)) — igneous

Amygdaloidal Basalt

Amygdaloidal Basalt (Mafic Volcanic Rock)

Copper Ore (likely Chalcopyrite in Matrix) (Chalcopyrite (CuFeS2)) — mineral

Copper Ore (likely Chalcopyrite in Matrix)

Chalcopyrite (CuFeS2)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Sandstone (Clastic Sedimentary Rock) — sedimentary

Sandstone

Clastic Sedimentary Rock

Granite (Intrusive Igneous Rock) — igneous

Granite

Intrusive Igneous Rock