Rock Identifier

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All rocks & minerals

Every specimen the Rock Identifier community has discovered, from desert agates to deep-sea basalts.

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Acanthite

Acanthite

Achroite

Achroite

Adinole

Adinole

Adirondack Garnet

Adirondack Garnet

Adularia

Adularia

Agate

Agate

Albite

Albite

Albitite

Albitite

Alexandrite

Alexandrite

Alkali Feldspar

Alkali Feldspar

Almandine Garnet

Almandine Garnet

Alnöite

Alnöite

Granite Pebble (Phaneritic intrusive igneous rock) — igneous

Granite Pebble

Phaneritic intrusive igneous rock

igneous
Quartz Pebble (Silicon Dioxide (SiO2)) — sedimentary

Quartz Pebble

Silicon Dioxide (SiO2)

sedimentary
Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

sedimentary
Yellow Quartz (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz

Silicon Dioxide (SiO2)

mineral
Granite Pebble (Intrusive Igneous Rock) — igneous

Granite Pebble

Intrusive Igneous Rock

igneous
Granite (Felsic intrusive igneous rock) — igneous

Granite

Felsic intrusive igneous rock

igneous
Quartz Pebble (Silicon Dioxide (SiO2)) — sedimentary

Quartz Pebble

Silicon Dioxide (SiO2)

sedimentary
Flint / Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Flint / Chert

Microcrystalline Quartz (SiO2)

sedimentary
Quartz Pebble (Quartz (Silicon Dioxide, SiO2)) — sedimentary

Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

sedimentary
Granite (Felsic intrusive igneous rock) — igneous

Granite

Felsic intrusive igneous rock

igneous
Quartz pebble (Silicon dioxide (SiO2)) — sedimentary

Quartz pebble

Silicon dioxide (SiO2)

sedimentary
Quartz Pebble (Quartz (SiO2)) — sedimentary

Quartz Pebble

Quartz (SiO2)

sedimentary
Pegmatite or Graphic Granite (Intrusive Igneous Rock) — igneous

Pegmatite or Graphic Granite

Intrusive Igneous Rock

igneous
Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

mineral
Agate (Chalcedony (SiO2)) — sedimentary

Agate

Chalcedony (SiO2)

sedimentary
Quartz pebble (Silicon Dioxide (SiO2)) — mineral

Quartz pebble

Silicon Dioxide (SiO2)

mineral
Agate (Silicon Dioxide (Chalcedony), SiO2) — sedimentary

Agate

Silicon Dioxide (Chalcedony), SiO2

sedimentary
Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

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

Pyrite in Quartz

Iron Sulfide (FeS2) in Silicon Dioxide (SiO2)

mineral
Granite (Intrusive Igneous Rock) — igneous

Granite

Intrusive Igneous Rock

igneous
Pebble (Lithified clastic rock fragment / Quartz-rich pebble) — sedimentary

Pebble

Lithified clastic rock fragment / Quartz-rich pebble

sedimentary
Quartz pebble (Silicon dioxide (SiO2)) — sedimentary

Quartz pebble

Silicon dioxide (SiO2)

sedimentary
Dumortierite Quartz (Dumortierite in Quartz (SiO2 with Al7BO3(SiO4)3(O,OH)3)) — mineral

Dumortierite Quartz

Dumortierite in Quartz (SiO2 with Al7BO3(SiO4)3(O,OH)3)

mineral
Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

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

Quartz Pebble

Silicon Dioxide (SiO2)

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

Clear Quartz

Quartz (Silicon Dioxide, SiO2)

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

Quartz Pebble

Silicon Dioxide (SiO2)

mineral
Opalite (Synthetic glass / Opalized glass) — gemstone

Opalite

Synthetic glass / Opalized glass

gemstone
Rough Diamond (Carbon (C)) — mineral

Rough Diamond

Carbon (C)

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

Quartz Crystal

Silicon Dioxide (SiO2)

mineral
Diamond (Carbon (C)) — mineral

Diamond

Carbon (C)

mineral
Quartz pebble (Silicon dioxide (SiO2)) — mineral

Quartz pebble

Silicon dioxide (SiO2)

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

Quartz Pebble

Silicon Dioxide (SiO2)

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

Quartz Crystal

Silicon Dioxide (SiO2)

mineral
Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

mineral
Basalt (Extrusive Igneous Rock) — igneous

Basalt

Extrusive Igneous Rock

igneous
Sapphire (Corundum (Al2O3)) — gemstone

Sapphire

Corundum (Al2O3)

gemstone
Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

mineral
Granite (Intrusive Igneous Rock) — igneous

Granite

Intrusive Igneous Rock

igneous
Worn River Pebble with Fossil Indentation (Sedimentary Rock with Fossil Infill) — sedimentary

Worn River Pebble with Fossil Indentation

Sedimentary Rock with Fossil Infill

sedimentary
Granite (Intrusive igneous rock) — igneous

Granite

Intrusive igneous rock

igneous
Bandit Heart Pebble (Quartz-Veined Sedimentary Rock) (Quartz-veined siltstone or sandstone) — sedimentary

Bandit Heart Pebble (Quartz-Veined Sedimentary Rock)

Quartz-veined siltstone or sandstone

sedimentary