Rock Identifier

Category

Igneous Rock

Browse igneous rock specimens identified by the Rock Identifier community.

Learn about Igneous Rock in the encyclopedia

Carbonatite

Carbonatite

Rock Gypsum

Rock Gypsum

Rock Salt

Rock Salt

Coral Rock

Coral Rock

Asphalt Rock

Asphalt Rock

Pyroxenite

Pyroxenite

Basalt

Basalt

Diorite

Diorite

Kimberlite

Kimberlite

Norite

Norite

Troctolite

Troctolite

Gabbro

Gabbro

Basalt River Pebble (Basalt) — igneous

Basalt River Pebble

Basalt

Basalt (Basalt) — igneous

Basalt

Basalt

Porphyritic Basalt with Quartz Inclusions (Aphanitic Porphyritic Basalt) — Igneous

Porphyritic Basalt with Quartz Inclusions

Aphanitic Porphyritic Basalt

Basalt (Weathered/River worn) (Mafic Volcanic Rock (Primarily Plagioclase Feldspar and Pyroxene)) — igneous

Basalt (Weathered/River worn)

Mafic Volcanic Rock (Primarily Plagioclase Feldspar and Pyroxene)

Andesite (Andesite) — igneous

Andesite

Andesite

Basalt with Quartz/Calcite Inclusions (Mafic Volcanic Rock (Fe-Mg silicate rich)) — igneous

Basalt with Quartz/Calcite Inclusions

Mafic Volcanic Rock (Fe-Mg silicate rich)

Basalt (Road Gravel) (Aphanitic mafic volcanic rock (various compositions of plagioclase feldspar and pyroxene)) — igneous

Basalt (Road Gravel)

Aphanitic mafic volcanic rock (various compositions of plagioclase feldspar and pyroxene)

Basalt (Mafic Volcanic Rock (composed of plagioclase, pyroxene, and olivine)) — igneous

Basalt

Mafic Volcanic Rock (composed of plagioclase, pyroxene, and olivine)

Basalt (Basalt) — igneous

Basalt

Basalt

Basalt with Vesicular Surface (Basalt (Mafic Extrusive)) — igneous

Basalt with Vesicular Surface

Basalt (Mafic Extrusive)

Basalt (Gravel Pebble) (Basalt (contains pyroxene, plagioclase feldspar, and olivine)) — igneous

Basalt (Gravel Pebble)

Basalt (contains pyroxene, plagioclase feldspar, and olivine)

Andesite River Stones (Andesite) — igneous

Andesite River Stones

Andesite

Basalt (Basalt (predominantly Plagioclase Feldspar and Pyroxene)) — igneous

Basalt

Basalt (predominantly Plagioclase Feldspar and Pyroxene)

Basalt (Basalt) — igneous

Basalt

Basalt

Pink Granite (Phaneritic Plutonic Rock (Granite with K-Feldspar)) — igneous

Pink Granite

Phaneritic Plutonic Rock (Granite with K-Feldspar)

Granodiorite (Riverbed Cobble) (Granodiorite) — igneous

Granodiorite (Riverbed Cobble)

Granodiorite

Basalt (Basalt (composition of plagioclase feldspar, pyroxene, and olivine)) — igneous

Basalt

Basalt (composition of plagioclase feldspar, pyroxene, and olivine)

Granite (Granite) — igneous

Granite

Granite

Basalt with Porphyritic Texture (Porphyritic Basalt) — igneous

Basalt with Porphyritic Texture

Porphyritic Basalt

Basalt (River Stone) (Basalt) — igneous

Basalt (River Stone)

Basalt

Basalt Pebble (Basalt) — igneous

Basalt Pebble

Basalt

Basalt with Plagioclase Phenocrysts (Porphyritic Basalt) — igneous

Basalt with Plagioclase Phenocrysts

Porphyritic Basalt

Vesicular Basalt with Mineral Inclusions (Vesicular Basalt) — igneous

Vesicular Basalt with Mineral Inclusions

Vesicular Basalt

Granite Tile (Commercial Granite) (Granite (Phaneritic Quartz-Feldspar Plutonic Rock)) — igneous

Granite Tile (Commercial Granite)

Granite (Phaneritic Quartz-Feldspar Plutonic Rock)

Basalt (River Pebble) (Basalt) — igneous

Basalt (River Pebble)

Basalt

Granite (Phaneritic Plutonic Felsic Rock) — igneous

Granite

Phaneritic Plutonic Felsic Rock

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

Quartz (Milky/Common)

Quartz (Silicon Dioxide, SiO2)

Flowerstone (Porphyritic Basalt or Porphyritic Andesite) — igneous

Flowerstone

Porphyritic Basalt or Porphyritic Andesite

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

Smoky Quartz (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz

Silicon Dioxide (SiO2)

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

Blue Apatite

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

Blue Sapphire (Tumbled/Polished) (Corundum (Al2O3)) — mineral

Blue Sapphire (Tumbled/Polished)

Corundum (Al2O3)

Sodalite (Sodalite [Na8(Al6Si6O24)Cl2]) — mineral

Sodalite

Sodalite [Na8(Al6Si6O24)Cl2]

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

Gneiss

Gneiss (High-grade metamorphic rock)

Felsic Tuff (Pyroclastic volcanic rock (Tuff)) — igneous

Felsic Tuff

Pyroclastic volcanic rock (Tuff)

Yellow Chalcedony (common opal or chert variant) (Silicon Dioxide (SiO2)) — sedimentary (mineraloid/microcrystalline quartz)

Yellow Chalcedony (common opal or chert variant)

Silicon Dioxide (SiO2)

sedimentary (mineraloid/microcrystalline quartz)

Quartz Geode (Silicon Dioxide (SiO2)) — mineral

Quartz Geode

Silicon Dioxide (SiO2)

Basalt (Basalt (Mafic volcanic rock)) — igneous

Basalt

Basalt (Mafic volcanic rock)

Vesicular Basalt (Iron-Stained) (Mafic Volcanic Rock (Basalt)) — igneous

Vesicular Basalt (Iron-Stained)

Mafic Volcanic Rock (Basalt)

Basalt (Basalt (Mafic volcanic rock)) — igneous

Basalt

Basalt (Mafic volcanic rock)

Basalt (Basalt (Mafic volcanic rock)) — igneous

Basalt

Basalt (Mafic volcanic rock)

Pink Granite (Granite (Phaneritic intrusive rock)) — igneous

Pink Granite

Granite (Phaneritic intrusive rock)