Rock Identifier

Community gallery

All rocks & minerals

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

Faceted Diamond or Cubic Zirconia (Carbon (C) for Diamond; Zirconium dioxide (ZrO2) for CZ) — mineral

Faceted Diamond or Cubic Zirconia

Carbon (C) for Diamond; Zirconium dioxide (ZrO2) for CZ

mineral
Chert (Limestone-hosted Pebble) (Sedimentary Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Limestone-hosted Pebble)

Sedimentary Cryptocrystalline Quartz (SiO2)

sedimentary
Granite Cobble (Phaneritic Felsic Intrusive Rock (Granite)) — igneous

Granite Cobble

Phaneritic Felsic Intrusive Rock (Granite)

igneous
Porphyritic Basalt (Basalt with Feldspar Phenocrysts) — igneous

Porphyritic Basalt

Basalt with Feldspar Phenocrysts

igneous
Diamond (Carbon (C)) — mineral

Diamond

Carbon (C)

mineral
Sandstone (Arenite (SiO2 primarily)) — sedimentary

Sandstone

Arenite (SiO2 primarily)

sedimentary
Granite Pebble (Granite (composed of Quartz, Feldspar, and Mica)) — igneous

Granite Pebble

Granite (composed of Quartz, Feldspar, and Mica)

igneous
Granite Pebble (Granite (composed primarily of Quartz, Feldspar, and Mica)) — igneous

Granite Pebble

Granite (composed primarily of Quartz, Feldspar, and Mica)

igneous
Granite (Granite) — igneous

Granite

Granite

igneous
Granite (Phaneritic plutonic rock (Quartz, Feldspar, Mica)) — igneous

Granite

Phaneritic plutonic rock (Quartz, Feldspar, Mica)

igneous
Mica Schist (Muscovite-Biotite Schist) — metamorphic

Mica Schist

Muscovite-Biotite Schist

metamorphic
Chert (often called Flint) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (often called Flint)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

sedimentary
Chalcedony (Agate/Carnelian) (Cryptocrystalline Quartz (SiO2)) — mineral

Chalcedony (Agate/Carnelian)

Cryptocrystalline Quartz (SiO2)

mineral
Luminous Stone (Glow-in-the-dark Synthetic/Man-made Stone) (Strontium Aluminate tinted glass or resin (Crystalline silicate/oxide mix)) — mineral (synthetic)

Luminous Stone (Glow-in-the-dark Synthetic/Man-made Stone)

Strontium Aluminate tinted glass or resin (Crystalline silicate/oxide mix)

mineral (synthetic)
Yellow Jasper (Jasper (variety of Quartz - SiO2)) — sedimentary

Yellow Jasper

Jasper (variety of Quartz - SiO2)

sedimentary
Carnelian (Chalcedony) (Silicon Dioxide (SiO2)) — mineral

Carnelian (Chalcedony)

Silicon Dioxide (SiO2)

mineral
Aura Quartz (Rainbow Quartz) (Silicon Dioxide (SiO2) with metallic vapor coatings) — mineral

Aura Quartz (Rainbow Quartz)

Silicon Dioxide (SiO2) with metallic vapor coatings

mineral
Rough Blue Diamond (Carbon (C)) — mineral

Rough Blue Diamond

Carbon (C)

mineral
Rough Diamond (Diamond (C)) — mineral

Rough Diamond

Diamond (C)

mineral
Basalt (Beach Pebble) (Basalt (extrusive volcanic rock)) — igneous

Basalt (Beach Pebble)

Basalt (extrusive volcanic rock)

igneous
Basalt (Greenstone) (Basalt with chlorite/epidote (often referred to as Greenstone)) — igneous

Basalt (Greenstone)

Basalt with chlorite/epidote (often referred to as Greenstone)

igneous
Rose Quartz (Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese) — mineral

Rose Quartz

Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese

mineral
Graphic Granite (Graphic Granite (a runic intergrowth of Quartz and Feldspar)) — igneous

Graphic Granite

Graphic Granite (a runic intergrowth of Quartz and Feldspar)

igneous
Red Jasper (Silicon Dioxide (SiO2) with iron oxide inclusions) — sedimentary

Red Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

sedimentary
Chert with Jasper/Quartz Inclusions (Silicon Dioxide (SiO2)) — sedimentary

Chert with Jasper/Quartz Inclusions

Silicon Dioxide (SiO2)

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

Dalmatian Jasper

Peralkaline Quartz-Feldspar Rock with Arfvedsonite

igneous
Sodalite (Na8(Al6Si6O24)Cl2 (Sodalite)) — mineral

Sodalite

Na8(Al6Si6O24)Cl2 (Sodalite)

mineral
Green Aventurine (Aventurine Quartz (SiO2 with Fuchsite inclusions)) — mineral

Green Aventurine

Aventurine Quartz (SiO2 with Fuchsite inclusions)

mineral
Basalt River Stone (Basalt (Aphanitic Mafic Igneous Rock)) — igneous

Basalt River Stone

Basalt (Aphanitic Mafic Igneous Rock)

igneous
Basalt River Stones (Basalt (Mafic volcanic rock)) — igneous

Basalt River Stones

Basalt (Mafic volcanic rock)

igneous
Fossiliferous Limestone (Biogenic Limestone (Calcium Carbonate, CaCO3)) — sedimentary

Fossiliferous Limestone

Biogenic Limestone (Calcium Carbonate, CaCO3)

sedimentary
Greenstone (Metabasalt / Greenschist facies rock) — metamorphic

Greenstone

Metabasalt / Greenschist facies rock

metamorphic
Sandstone (River Stone) (Arenite (composed primarily of SiO2)) — sedimentary

Sandstone (River Stone)

Arenite (composed primarily of SiO2)

sedimentary
Sandstone (River Rock) (Arenite (SiO2 principal component)) — sedimentary

Sandstone (River Rock)

Arenite (SiO2 principal component)

sedimentary
Chert (Jasper) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Jasper)

Microcrystalline Quartz (SiO2)

sedimentary
Almandine Garnet (Almandine (Fe3Al2(SiO4)3)) — mineral

Almandine Garnet

Almandine (Fe3Al2(SiO4)3)

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

Quartz Crystal Cluster

Silicon Dioxide (SiO2)

mineral
Anthracite Coal (Anthracite (C)) — sedimentary

Anthracite Coal

Anthracite (C)

sedimentary
Red Jasper (Opaque microcrystalline quartz (SiO2) with Hematite inclusions) — sedimentary

Red Jasper

Opaque microcrystalline quartz (SiO2) with Hematite inclusions

sedimentary
Citrine (Silicon Dioxide (SiO2) with iron impurities) — mineral

Citrine

Silicon Dioxide (SiO2) with iron impurities

mineral
Banded Chert / Jasper (Silicon Dioxide (SiO2)) — sedimentary

Banded Chert / Jasper

Silicon Dioxide (SiO2)

sedimentary
Labradorite (Labradorite (Ca,Na)(Al,Si)4O8) — mineral

Labradorite

Labradorite (Ca,Na)(Al,Si)4O8

mineral