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

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

Quartz Crystal (Amethyst)

Silicon Dioxide (SiO2)

Quartz (on matrix) (Quartz (Silicon Dioxide, SiO₂)) — Mineral

Quartz (on matrix)

Quartz (Silicon Dioxide, SiO₂)

Granite / Quartz Vein Rock (Granitoid with Quartz (SiO2)) — igneous

Granite / Quartz Vein Rock

Granitoid with Quartz (SiO2)

Vesicular Basalt (Basalt with secondary mineral infilling (Amygdaloidal Basalt)) — igneous

Vesicular Basalt

Basalt with secondary mineral infilling (Amygdaloidal Basalt)

Granodiorite (River Cobble) (Granodiorite (contains Quartz, Plagioclase Feldspar, Biotite Mica)) — igneous

Granodiorite (River Cobble)

Granodiorite (contains Quartz, Plagioclase Feldspar, Biotite Mica)

Basalt River Pebble (Basalt) — igneous

Basalt River Pebble

Basalt

Basalt (Basalt (containing plagioclase, pyroxene, and olivine)) — igneous

Basalt

Basalt (containing plagioclase, pyroxene, and olivine)

Basalt (Basalt) — igneous

Basalt

Basalt

Basalt (Basalt) — igneous

Basalt

Basalt

Amygdaloidal Basalt (Amygdaloidal Basalt containing Zeolite and Calcite inclusions) — igneous

Amygdaloidal Basalt

Amygdaloidal Basalt containing Zeolite and Calcite inclusions

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

Basalt

Basalt (composition of plagioclase, pyroxene, and olivine)

Basalt with Plagioclase Phenocrysts (Porphyritic Basalt) — igneous

Basalt with Plagioclase Phenocrysts

Porphyritic Basalt

Basalt (Basalt (primarily Pyroxene and Plagioclase)) — igneous

Basalt

Basalt (primarily Pyroxene and Plagioclase)

Basalt River Pebble (Basalt) — igneous

Basalt River Pebble

Basalt

Basalt (Basalt) — igneous

Basalt

Basalt

Basalt with Secondary Mineral Inclusions (Amygdaloidal Basalt (Mafic volcanic rock, primarily Augite and Plagioclase)) — igneous

Basalt with Secondary Mineral Inclusions

Amygdaloidal Basalt (Mafic volcanic rock, primarily Augite and Plagioclase)

Basalt (River Pebble) (Basalt) — igneous

Basalt (River Pebble)

Basalt

Basalt with Vesicles (Vesicular Basalt) — igneous

Basalt with Vesicles

Vesicular Basalt

Basalt River Pebble (Basalt) — igneous

Basalt River Pebble

Basalt

Basalt (River Pebble) (Basalt) — igneous

Basalt (River Pebble)

Basalt

Basalt River Stone (Aphanitic Basalt) — igneous

Basalt River Stone

Aphanitic Basalt

Basalt (with possible alteration or lichen) (Mafic volcanic rock (primarily Plagioclase and Pyroxene)) — igneous

Basalt (with possible alteration or lichen)

Mafic volcanic rock (primarily Plagioclase and Pyroxene)

Basalt (Porphyritic) (Porphyritic Basalt) — igneous

Basalt (Porphyritic)

Porphyritic Basalt

Basalt (Basalt) — igneous

Basalt

Basalt

Basalt with Vesicular Texture (Basalt (SiO2 range 45-52%)) — igneous

Basalt with Vesicular Texture

Basalt (SiO2 range 45-52%)

Basalt Pebble (Basalt) — igneous

Basalt Pebble

Basalt

Basalt (Basalt) — igneous

Basalt

Basalt

Basalt (River Stone) (Basalt (SiO2 range 45-52%)) — igneous

Basalt (River Stone)

Basalt (SiO2 range 45-52%)

Basalt River Pebble (Extrusive Mafic Basalt) — igneous

Basalt River Pebble

Extrusive Mafic Basalt

Basalt (Basalt) — igneous

Basalt

Basalt

Granite Pebble (Granite (Phaneritic Quartz-Feldspar intrusive rock)) — igneous

Granite Pebble

Granite (Phaneritic Quartz-Feldspar intrusive rock)

Basalt River Cobble (Basalt) — igneous

Basalt River Cobble

Basalt

Basalt (Extrusive volcanic basalt) — igneous

Basalt

Extrusive volcanic basalt

Basalt (Basalt) — igneous

Basalt

Basalt

Peridotite (Olivine/Peridot) (Peridotite: (Mg,Fe)2SiO4 (Olivine-rich ultramafic rock)) — igneous

Peridotite (Olivine/Peridot)

Peridotite: (Mg,Fe)2SiO4 (Olivine-rich ultramafic rock)

Basalt (Basalt) — igneous

Basalt

Basalt

Vesicular Basalt (Vesicular Basalt) — igneous

Vesicular Basalt

Vesicular Basalt

Basalt (Basalt) — igneous

Basalt

Basalt

Coarse-grained Granite (Phaneritic Granite (contains Quartz, Feldspar, and Mica)) — igneous

Coarse-grained Granite

Phaneritic Granite (contains Quartz, Feldspar, and Mica)

Basalt with Quartz Veins (Basalt (SiO2 range 45-52%)) — igneous

Basalt with Quartz Veins

Basalt (SiO2 range 45-52%)

Basalt (Basalt (Mafic Extrusive)) — igneous

Basalt

Basalt (Mafic Extrusive)

Basalt River Pebble (Basalt) — igneous

Basalt River Pebble

Basalt