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

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

Granite Pebble

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

Basalt Riverstone (Basalt (Aphanitic Mafic Volcanic Rock)) — igneous

Basalt Riverstone

Basalt (Aphanitic Mafic Volcanic Rock)

Basalt (Basalt (extrusive volcanic mafic rock)) — igneous

Basalt

Basalt (extrusive volcanic mafic rock)

Porphyry (Porphyritic Rhyolite or Andesite) — igneous

Porphyry

Porphyritic Rhyolite or Andesite

Amygdaloidal Basalt (Vesicular-Amygdaloidal Basalt (Mafic Extrusive)) — igneous

Amygdaloidal Basalt

Vesicular-Amygdaloidal Basalt (Mafic Extrusive)

Gneiss (Foliated Metamorphic Rock) — metamorphic

Gneiss

Foliated Metamorphic Rock

Gneiss (Gneissic Metamorphic Rock) — metamorphic

Gneiss

Gneissic Metamorphic Rock

Greenstone (Greenschist / Meta-basalt) — metamorphic

Greenstone

Greenschist / Meta-basalt

Basalt with Vesicles (Vesicular Basalt) — igneous

Basalt with Vesicles

Vesicular Basalt

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

Granite

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

Pink Granite (Granite (Felsic Plutonic Rock)) — igneous

Pink Granite

Granite (Felsic Plutonic Rock)

Amygdaloidal Basalt (Amygdaloidal Mafic Volcanic Rock) — igneous

Amygdaloidal Basalt

Amygdaloidal Mafic Volcanic Rock

Granitic Pegmatite (Pegmatite (Quartz: SiO2, Feldspar: KAlSi3O8, Mica: KAl2(AlSi3O10)(OH)2)) — Igneous

Granitic Pegmatite

Pegmatite (Quartz: SiO2, Feldspar: KAlSi3O8, Mica: KAl2(AlSi3O10)(OH)2)

Grey Agate (Silicon Dioxide (SiO2) - Variety of Chalcedony) — mineral

Grey Agate

Silicon Dioxide (SiO2) - Variety of Chalcedony

Unakite (Unakite Epidosite (Granite with epidote and orthoclase)) — metamorphic

Unakite

Unakite Epidosite (Granite with epidote and orthoclase)

Basalt (Vesicular) (Basalt (mostly plagioclase, pyroxene, and olivine)) — igneous

Basalt (Vesicular)

Basalt (mostly plagioclase, pyroxene, and olivine)

Basalt (River Pebble) (Basalt) — igneous

Basalt (River Pebble)

Basalt

Basalt (Basalt) — igneous

Basalt

Basalt

Basalt (Basalt) — igneous

Basalt

Basalt

Basalt with Quartz Vein (Basalt containing a microcrystalline quartz (SiO2) intrusion) — igneous

Basalt with Quartz Vein

Basalt containing a microcrystalline quartz (SiO2) intrusion

Snowflake Obsidian (Hydrated Volcanic Glass with Cristobalite inclusions) — igneous

Snowflake Obsidian

Hydrated Volcanic Glass with Cristobalite inclusions

Basalt (Crushed Stone) (Basalt) — igneous

Basalt (Crushed Stone)

Basalt

Basalt Pebble (Basalt) — igneous

Basalt Pebble

Basalt

Basalt River Pebble (Basalt) — igneous

Basalt River Pebble

Basalt

Granodiorite (Granodiorite (Na,Ca)(Si,Al)4O8) — igneous

Granodiorite

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

Basalt (Vesicular/Amygdaloidal or Water-Worn) (Basalt) — igneous

Basalt (Vesicular/Amygdaloidal or Water-Worn)

Basalt

Basalt (with possible weathered crust) (Basalt (composition: Plagioclase feldspar, Pyroxene, Olivine)) — igneous

Basalt (with possible weathered crust)

Basalt (composition: Plagioclase feldspar, Pyroxene, Olivine)

Basalt Pebble (Basalt) — igneous

Basalt Pebble

Basalt

Basalt (Fieldstone) (Basalt) — igneous

Basalt (Fieldstone)

Basalt

Granodiorite (Granodiorite (containing Plagioclase, Quartz, K-Feldspar, and Hornblende or Biotite)) — igneous

Granodiorite

Granodiorite (containing Plagioclase, Quartz, K-Feldspar, and Hornblende or Biotite)

Basalt River Stone (Basalt) — igneous

Basalt River Stone

Basalt

Basalt with vesicles/amygdules (Basalt (containing volcanic glass and plagioclase)) — igneous

Basalt with vesicles/amygdules

Basalt (containing volcanic glass and plagioclase)

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

Basalt

Basalt (composition primarily Plagioclase Feldspar and Pyroxene)

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

Basalt

Basalt (principally Plagioclase Feldspar and Pyroxene)

Basalt (Basalt (various silicate compositions)) — igneous

Basalt

Basalt (various silicate compositions)

Basalt (Basalt (Aphanitic-to-porphyritic mafic volcanic rock)) — igneous

Basalt

Basalt (Aphanitic-to-porphyritic mafic volcanic rock)

Vesicular Basalt (Basalt) — igneous

Vesicular Basalt

Basalt

Basalt Pebble (Vesicular Basalt) — igneous

Basalt Pebble

Vesicular Basalt

Basalt (Basalt) — igneous

Basalt

Basalt

Basalt River Stone (Aphanitic Basalt) — igneous

Basalt River Stone

Aphanitic Basalt

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

Gneiss

Gneiss (High-grade metamorphic rock)

Greenstone (Metabasalt / Greenschist facies rock) — metamorphic

Greenstone

Metabasalt / Greenschist facies rock