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

Pumice (Pumice (a highly vesicular volcanic rock)) — igneous

Pumice

Pumice (a highly vesicular volcanic rock)

Granite Gneiss (Gneiss (high-grade metamorphic rock)) — metamorphic

Granite Gneiss

Gneiss (high-grade metamorphic rock)

Basalt with Quartz Veining (Mafic Volcanic Rock with Silicate Micro-veins) — igneous

Basalt with Quartz Veining

Mafic Volcanic Rock with Silicate Micro-veins

Quartz Veined Basalt Pebble (Amygdaloidal Basalt with Quartz (SiO2) veining) — igneous

Quartz Veined Basalt Pebble

Amygdaloidal Basalt with Quartz (SiO2) veining

Porphyritic Basalt (Chinese Writing Stone) (Porphyritic Basalt or Porphyritic Andesite) — igneous

Porphyritic Basalt (Chinese Writing Stone)

Porphyritic Basalt or Porphyritic Andesite

Porphyritic Basalt (Porphyritic Basalt (with plagioclase phenocrysts)) — igneous

Porphyritic Basalt

Porphyritic Basalt (with plagioclase phenocrysts)

Zircon (Zircon (Zirconium Silicate - ZrSiO4)) — mineral

Zircon

Zircon (Zirconium Silicate - ZrSiO4)

Amygdaloidal Basalt (Basalt with secondary mineral infilling) — igneous

Amygdaloidal Basalt

Basalt with secondary mineral infilling

Gabbro (Gabbro (Mg,Fe)2Si2O6 and CaAl2Si2O8) — igneous

Gabbro

Gabbro (Mg,Fe)2Si2O6 and CaAl2Si2O8

Labradorite Granite (Blue Pearl) (Anorthosite (dominated by Labradorite feldspar)) — igneous

Labradorite Granite (Blue Pearl)

Anorthosite (dominated by Labradorite feldspar)

Larvikite (Larvikite (Anorthoclase-rich Monzonite)) — igneous

Larvikite

Larvikite (Anorthoclase-rich Monzonite)

Diorite (Salt and Pepper Rock) (Diorite) — igneous

Diorite (Salt and Pepper Rock)

Diorite

Basalt River Stone (Basalt (Mafic volcanic rock, primarily Plagioclase and Pyroxene)) — igneous

Basalt River Stone

Basalt (Mafic volcanic rock, primarily Plagioclase and Pyroxene)

Pumice (Pumice (Vesicular volcanic glass)) — igneous

Pumice

Pumice (Vesicular volcanic glass)

Obsidian (Volcanic Glass (predominantly SiO2)) — igneous

Obsidian

Volcanic Glass (predominantly SiO2)

Rhyolitic Tuff (Breccia Type) (Rhyolitic Pyroclastic Rock (Mixed Silicates including Quartz, Feldspar, and Volcanic Glass)) — igneous

Rhyolitic Tuff (Breccia Type)

Rhyolitic Pyroclastic Rock (Mixed Silicates including Quartz, Feldspar, and Volcanic Glass)

Basalt (Basalt) — igneous

Basalt

Basalt

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

Milky Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

Quartz (River Stone) (Silicon Dioxide (SiO2)) — mineral

Quartz (River Stone)

Silicon Dioxide (SiO2)

Granite Gneiss (Felsic Gneiss (composed of Quartz, Feldspar, and Biotite)) — metamorphic

Granite Gneiss

Felsic Gneiss (composed of Quartz, Feldspar, and Biotite)

Granite (Granite) — igneous

Granite

Granite

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

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

White Quartz Pebble

Silicon Dioxide (SiO2)

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

Basalt

Basalt (Aphanitic Mafic Volcanic Rock)

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

Pink Granite

Phaneritic Plutonic Felsic Rock (Granite)

Pink Granite (Phaneritic Quartz-Feldspar Plutonic Rock) — igneous

Pink Granite

Phaneritic Quartz-Feldspar Plutonic Rock

Granodiorite (Phaneritic Plutonic Intermediate-Felsic Rock) — igneous

Granodiorite

Phaneritic Plutonic Intermediate-Felsic Rock

Diorite (Phaneritic Intermediate Plutonic Rock (Diorite)) — igneous

Diorite

Phaneritic Intermediate Plutonic Rock (Diorite)

Basalt with Amygdaloidal Inclusions (Aphanitic Mafic Volcanic Rock (Basalt)) — igneous

Basalt with Amygdaloidal Inclusions

Aphanitic Mafic Volcanic Rock (Basalt)

Basalt River Cobble (Basalt (Aphanitic Mafic Volcanic Rock)) — igneous

Basalt River Cobble

Basalt (Aphanitic Mafic Volcanic Rock)

Basalt with Jasper Veining (Basaltic Rock with Cryptocrystalline Quartz (SiO2)) — igneous

Basalt with Jasper Veining

Basaltic Rock with Cryptocrystalline Quartz (SiO2)

Granite (Granite (High-silica plutonic rock)) — Igneous

Granite

Granite (High-silica plutonic rock)

Rhyolite (Rhyolite (High-silica volcanic rock)) — igneous

Rhyolite

Rhyolite (High-silica volcanic rock)

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

Pink Granite

Phaneritic Plutonic Felsic Rock (Granite)

Granite (River-worn pebble) (Phaneritic plutonic rock (SiO2 + Al2O3)) — igneous

Granite (River-worn pebble)

Phaneritic plutonic rock (SiO2 + Al2O3)

Andesite Porphyry (Porphyritic Andesite (Intermediate volcanic rock)) — igneous

Andesite Porphyry

Porphyritic Andesite (Intermediate volcanic rock)

Basalt (Porphyritic Basalt) (Porphyritic Basalt (Mafic volcanic rock)) — igneous

Basalt (Porphyritic Basalt)

Porphyritic Basalt (Mafic volcanic rock)

Granite (Granite (High-silica plutonic rock)) — igneous

Granite

Granite (High-silica plutonic rock)

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

Granite

Granite (Phaneritic Quartz-Feldspar rock)

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

Pink Granite

Phaneritic Plutonic Felsic Rock (Granite)

Gabbro (Gabbro (phaneritic mafic intrusive rock)) — Igneous

Gabbro

Gabbro (phaneritic mafic intrusive rock)

Andesite (Andesite (Intermediate Extrusive Volcanic Rock)) — igneous

Andesite

Andesite (Intermediate Extrusive Volcanic Rock)