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

Limonite with Hematite (Hydrated iron(III) oxide-hydroxide with variable composition (FeO(OH)·nH2O)) — mineral

Limonite with Hematite

Hydrated iron(III) oxide-hydroxide with variable composition (FeO(OH)·nH2O)

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

Quartz (Clear Quartz/Rock Crystal)

Silicon Dioxide (SiO2)

Azurite and Malachite (Cu3(CO3)2(OH)2 (Azurite) and Cu2(CO3)(OH)2 (Malachite)) — mineral

Azurite and Malachite

Cu3(CO3)2(OH)2 (Azurite) and Cu2(CO3)(OH)2 (Malachite)

Tufa (Calcareous Tufa (CaCO3)) — sedimentary

Tufa

Calcareous Tufa (CaCO3)

Sandstone Pebble (Arenite (SiO2 principal)) — sedimentary

Sandstone Pebble

Arenite (SiO2 principal)

Sandstone Pebble (Arenite (SiO2 complex)) — sedimentary

Sandstone Pebble

Arenite (SiO2 complex)

Azurite in Matrix (Azurite (Cu3(CO3)2(OH)2)) — mineral

Azurite in Matrix

Azurite (Cu3(CO3)2(OH)2)

Turquoise (Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)) — mineral

Turquoise

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

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

Amygdaloidal Basalt

Amygdaloidal Basalt (Mafic Volcanic Rock)

Orange Calcite (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite

Calcium Carbonate (CaCO3)

Quartz and Mixed Sedimentary Rocks (Silicon Dioxide (SiO2) mixed with various clastic sedimentary lithologies) — sedimentary

Quartz and Mixed Sedimentary Rocks

Silicon Dioxide (SiO2) mixed with various clastic sedimentary lithologies

Green Fluorite (Botryoidal/Massive) (Calcium Fluoride (CaF2)) — mineral

Green Fluorite (Botryoidal/Massive)

Calcium Fluoride (CaF2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Milky quartz with iron-oxide staining (Quartz (silicon dioxide, SiO₂), commonly intergrown massive quartz) — mineral

Milky quartz with iron-oxide staining

Quartz (silicon dioxide, SiO₂), commonly intergrown massive quartz

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

Milky Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

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

Blue Apatite

Apatite - Ca5(PO4)3(F,Cl,OH)

Mahogany Obsidian (Obsidian with Hematite inclusions (SiO2 + Fe2O3)) — igneous

Mahogany Obsidian

Obsidian with Hematite inclusions (SiO2 + Fe2O3)

Fossilized Stingray Mouth Plate (Myliobatidae gen. et sp. indet. (e.g., Myliobatis, Aetobatus)) — fossil

Fossilized Stingray Mouth Plate

Myliobatidae gen. et sp. indet. (e.g., Myliobatis, Aetobatus)

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

Pyrite (on host rock) (Iron Sulfide (FeS2)) — mineral

Pyrite (on host rock)

Iron Sulfide (FeS2)

Gabbro (Gabbro (Mafic Plutonic Rock)) — igneous

Gabbro

Gabbro (Mafic Plutonic Rock)

Granite (Intrusive Felsic Igneous Rock) — igneous

Granite

Intrusive Felsic Igneous Rock

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Sandstone (Arenite (SiO2 principal)) — sedimentary

Sandstone

Arenite (SiO2 principal)

Lapis Lazuli (Low-grade) (Lapis Lazuli (Aggregate of Lazurite, Calcite, and Pyrite)) — metamorphic

Lapis Lazuli (Low-grade)

Lapis Lazuli (Aggregate of Lazurite, Calcite, and Pyrite)

Banded Sandstone (Water-worn Pebble) (Arenite with mineral banding) — sedimentary

Banded Sandstone (Water-worn Pebble)

Arenite with mineral banding

Gneiss (specifically Granite Gneiss) (Gneiss (High-grade Regional Metamorphic Rock)) — metamorphic

Gneiss (specifically Granite Gneiss)

Gneiss (High-grade Regional Metamorphic Rock)

Red Sandstone (Arenite (primarily SiO2 with Fe2O3)) — sedimentary

Red Sandstone

Arenite (primarily SiO2 with Fe2O3)

Sandstone (with Limonite/Iron Staining) (Arenite (SiO2 based) with FeO(OH) staining) — sedimentary

Sandstone (with Limonite/Iron Staining)

Arenite (SiO2 based) with FeO(OH) staining

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

Milky Quartz with Iron Staining

Quartz (Silicon Dioxide, SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Red Sandstone (Arenite (composed primarily of Quartz and Iron Oxide)) — sedimentary

Red Sandstone

Arenite (composed primarily of Quartz and Iron Oxide)

Sandstone (with Iron Oxidation) (Arenite (SiO2 with Fe-oxides)) — sedimentary

Sandstone (with Iron Oxidation)

Arenite (SiO2 with Fe-oxides)

Granite and Igneous Rock Collection (Intrusive igneous rock / Granitoid) — igneous

Granite and Igneous Rock Collection

Intrusive igneous rock / Granitoid

Limonite (Ironstone Concretion) (Limonite (FeO(OH)·nH2O)) — mineral/sedimentary

Limonite (Ironstone Concretion)

Limonite (FeO(OH)·nH2O)

mineral/sedimentary

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

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Not a geological specimen (N/A (man-made object)) — N/A

Not a geological specimen

N/A (man-made object)

Fluorite (Calcium Fluoride (CaF2)) — mineral

Fluorite

Calcium Fluoride (CaF2)

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

Quartz (River Pebble)

Silicon Dioxide (SiO2)

Quartz (Sunstone-like Chalcedony) (Silicon Dioxide (SiO2)) — mineral

Quartz (Sunstone-like Chalcedony)

Silicon Dioxide (SiO2)

Bornite (“peacock ore”), likely weathered copper sulfide (Bornite, Cu₅FeS₄; possibly chalcopyrite, CuFeS₂, with iridescent tarnish) — mineral

Bornite (“peacock ore”), likely weathered copper sulfide

Bornite, Cu₅FeS₄; possibly chalcopyrite, CuFeS₂, with iridescent tarnish