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

Slag (Industrial Glassy Byproduct) (Anthropogenic silicate byproduct (Slag)) — Mineral-like byproduct (often mistaken for igneous rock or meteorite)

Slag (Industrial Glassy Byproduct)

Anthropogenic silicate byproduct (Slag)

Mineral-like byproduct (often mistaken for igneous rock or meteorite)

Nephrite Jade (Nephrite) — Mineral/Rock

Nephrite Jade

Nephrite

Basalt with Quartz Vein (Mafic volcanic rock with hydrothermal SiO2 filling) — igneous

Basalt with Quartz Vein

Mafic volcanic rock with hydrothermal SiO2 filling

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

Quartz (Druzy)

Silicon Dioxide (SiO2)

Vesicular Basalt (Vesicular Basalt) — igneous

Vesicular Basalt

Vesicular Basalt

Granite Pebbles (Granite (composed primarily of Quartz SiO2, Feldspar (KAlSi3O8 – NaAlSi3O8 – CaAl2Si2O8), and Mica)) — igneous

Granite Pebbles

Granite (composed primarily of Quartz SiO2, Feldspar (KAlSi3O8 – NaAlSi3O8 – CaAl2Si2O8), and Mica)

Granite (Granite) — igneous

Granite

Granite

Granodiorite with Quartz Veining (Granodiorite (containing Plagioclase Feldspar, Quartz, and Biotite/Hornblende) with Quartz (SiO2) veins) — igneous

Granodiorite with Quartz Veining

Granodiorite (containing Plagioclase Feldspar, Quartz, and Biotite/Hornblende) with Quartz (SiO2) veins

Epidote with Quartz/Feldspar (Epidote (Ca2(Al, Fe)3(SiO4)3(OH)) with associated minerals in a host rock) — Mineral/Metamorphic rock

Epidote with Quartz/Feldspar

Epidote (Ca2(Al, Fe)3(SiO4)3(OH)) with associated minerals in a host rock

Mineral/Metamorphic rock

Vesicular Basalt (or Scoraceous Basalt) (Basalt (Vesicular texture)) — igneous

Vesicular Basalt (or Scoraceous Basalt)

Basalt (Vesicular texture)

Vesicular Basalt (Lava Rock) (Basalt) — igneous

Vesicular Basalt (Lava Rock)

Basalt

Blue Apatite (Fluorapatite (Ca5(PO4)3F)) — mineral

Blue Apatite

Fluorapatite (Ca5(PO4)3F)

Basalt Cobble (Vesicular Basalt (Mafic Extrusive)) — igneous

Basalt Cobble

Vesicular Basalt (Mafic Extrusive)

Granodiorite (Granodiorite) — igneous

Granodiorite

Granodiorite

Basalt (Basalt (Mafic volcanic rock)) — igneous

Basalt

Basalt (Mafic volcanic rock)

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

Granite

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

Vesicular Basalt (Pumice-like) (Vesicular Basalt) — igneous

Vesicular Basalt (Pumice-like)

Vesicular Basalt

Granodiorite (Granodiorite (containing Plagioclase, Quartz, and Biotite)) — igneous

Granodiorite

Granodiorite (containing Plagioclase, Quartz, and Biotite)

Granodiorite (Weathered) (Granodiorite) — igneous

Granodiorite (Weathered)

Granodiorite

Granodiorite (Gneissic texture) (Granodiorite (containing Quartz SiO2, Plagioclase Feldspar, and Biotite)) — igneous

Granodiorite (Gneissic texture)

Granodiorite (containing Quartz SiO2, Plagioclase Feldspar, and Biotite)

Basalt (Vesicular) (Basalt (Extrusive Volcanic Rock)) — igneous

Basalt (Vesicular)

Basalt (Extrusive Volcanic Rock)

Quartz on Matrix (Silicon Dioxide (SiO2)) — mineral

Quartz on Matrix

Silicon Dioxide (SiO2)

Massive Quartz with Host Rock (Silicon Dioxide (SiO2)) — mineral

Massive Quartz with Host Rock

Silicon Dioxide (SiO2)

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

Quartz Crystal Cluster on Matrix

Silicon Dioxide (SiO2)

White Quartz (Silicon Dioxide (SiO2)) — mineral

White Quartz

Silicon Dioxide (SiO2)

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

Gneiss

High-grade regional metamorphic rock (Foliated)

Basalt with inclusion (Basalt (Aphanitic-Porphyritic texture)) — igneous

Basalt with inclusion

Basalt (Aphanitic-Porphyritic texture)

Basalt with Scoria (Amygdaloidal Basalt / Vesicular Basalt) — igneous

Basalt with Scoria

Amygdaloidal Basalt / Vesicular Basalt

Basalt (Basalt) — igneous

Basalt

Basalt

Basalt (Basalt) — igneous

Basalt

Basalt

Garnetiferous Pegmatite (Pegmatite with Almandine Garnet and Muscovite) — igneous

Garnetiferous Pegmatite

Pegmatite with Almandine Garnet and Muscovite

Vesicular Basalt (Lava Rock) (Vesicular Basalt) — igneous

Vesicular Basalt (Lava Rock)

Vesicular Basalt

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

Milky Quartz Pebble

Silicon Dioxide (SiO2)

Basalt with Alteration Crust (Basalt (SiO2 range 45-52%)) — igneous

Basalt with Alteration Crust

Basalt (SiO2 range 45-52%)

Basalt (Basalt (Mafic volcanic rock)) — igneous

Basalt

Basalt (Mafic volcanic rock)

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

Basalt River Cobble

Basalt (Mafic volcanic rock)

Granite (Plutonic felsic rock (Quartz, Feldspar, Mica)) — igneous

Granite

Plutonic felsic rock (Quartz, Feldspar, Mica)

Basalt (Basalt (composition predominately Plagioclase feldspar and Pyroxene)) — igneous

Basalt

Basalt (composition predominately Plagioclase feldspar and Pyroxene)

Sodalite (Na8(Al6Si6O24)Cl2) — mineral

Sodalite

Na8(Al6Si6O24)Cl2

Vesicular Basalt with Quartz/Chalcedony (Vesicular Basalt (primarily Plagioclase, Pyroxene, and Olivine with SiO2 infill)) — igneous

Vesicular Basalt with Quartz/Chalcedony

Vesicular Basalt (primarily Plagioclase, Pyroxene, and Olivine with SiO2 infill)

Serpentine (Antigorite, Lizardite, or Chrysotile (Mg, Fe)3Si2O5(OH)4) — metamorphic

Serpentine

Antigorite, Lizardite, or Chrysotile (Mg, Fe)3Si2O5(OH)4

Basalt (Basalt (Mafic Extrusive)) — igneous

Basalt

Basalt (Mafic Extrusive)