Rock Identifier

Category

Igneous Rock

Browse igneous rock specimens identified by the Rock Identifier community.

Learn about Igneous Rock in the encyclopedia

Carbonatite

Rock Gypsum

Coral Rock

Rock Salt

Asphalt Rock

Pyroxenite

Basalt

Diorite

Kimberlite

Troctolite

Gabbro

Norite

Granite (Phaneritic plutonic felsic rock (primarily Quartz, Feldspar, and Mica)) — igneous

Granite

Phaneritic plutonic felsic rock (primarily Quartz, Feldspar, and Mica)

Dalmation Stone (Peralkaline Rock (mixed silicate minerals)) — igneous

Dalmation Stone

Peralkaline Rock (mixed silicate minerals)

Dalmation Stone (often called Dalmatian Jasper) (Peralkaline Rock (Microgranite/Aplite), SiO2 with inclusions of Arfvedsonite) — igneous

Dalmation Stone (often called Dalmatian Jasper)

Peralkaline Rock (Microgranite/Aplite), SiO2 with inclusions of Arfvedsonite

Granite (Granite (Phaneritic Igneous Rock)) — igneous

Granite

Granite (Phaneritic Igneous Rock)

Granite (Phaneritic Felsic Igneous Rock) — igneous

Granite

Phaneritic Felsic Igneous Rock

Felsic Igneous Rock (likely Rhyolite or weathered Granite) (Felsic Volcanic/Plutonic Rock) — igneous

Felsic Igneous Rock (likely Rhyolite or weathered Granite)

Felsic Volcanic/Plutonic Rock

Porphyry (Porphyritic igneous rock) — igneous

Porphyry

Porphyritic igneous rock

Granite Pebble (Igneous Intrusive Rock (Quartz-Feldspar-Mica Phenocrysts)) — igneous

Granite Pebble

Igneous Intrusive Rock (Quartz-Feldspar-Mica Phenocrysts)

Likely weathered porphyritic igneous rock (Provisional identification: altered basaltic-andesite or rhyolite; exact mineralogy cannot be confirmed from this close, flash-lit image) — igneous

Likely weathered porphyritic igneous rock

Provisional identification: altered basaltic-andesite or rhyolite; exact mineralogy cannot be confirmed from this close, flash-lit image

Granite (Phaneritic Plutonic Felsic Rock) — igneous

Granite

Phaneritic Plutonic Felsic Rock

Granite (Granite (Felsic Plutonic Rock)) — igneous

Granite

Granite (Felsic Plutonic Rock)

Peridot (Olivine) (Olivine (Magnesium Iron Silicate), (Mg,Fe)2SiO4) — mineral

Peridot (Olivine)

Olivine (Magnesium Iron Silicate), (Mg,Fe)2SiO4

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

Granite

Granite (Phaneritic intrusive igneous rock)

Dalmatian Jasper (Dalmatian Stone) (Perthitic Feldspar with Arfvedsonite/Riebeckite) — igneous

Dalmatian Jasper (Dalmatian Stone)

Perthitic Feldspar with Arfvedsonite/Riebeckite

Granite (Phaneritic Igneous Rock (composed primarily of Quartz, Alkali Feldspar, and Plagioclase)) — igneous

Granite

Phaneritic Igneous Rock (composed primarily of Quartz, Alkali Feldspar, and Plagioclase)

Dalmatian Jasper (Peralkaline Quartz-Feldspar Rock with Arfvedsonite) — igneous

Dalmatian Jasper

Peralkaline Quartz-Feldspar Rock with Arfvedsonite

Granite Cobble (Granite) — igneous

Granite Cobble

Granite

Granite (Granite (compositionally: Quartz, Alkali Feldspar, and Plagioclase)) — igneous

Granite

Granite (compositionally: Quartz, Alkali Feldspar, and Plagioclase)

Polished orbicular stone, likely granite or diorite (Granite–diorite, composed mainly of feldspar, quartz, and dark amphibole/biotite) — igneous

Polished orbicular stone, likely granite or diorite

Granite–diorite, composed mainly of feldspar, quartz, and dark amphibole/biotite

Granite (Intrusive igneous rock (SiO2 range 65-75%)) — igneous

Granite

Intrusive igneous rock (SiO2 range 65-75%)

Dalmatian Jasper (Peralkaline Quartz-Feldspar Rock with Arfvedsonite) — igneous

Dalmatian Jasper

Peralkaline Quartz-Feldspar Rock with Arfvedsonite

Leopard Skin Jasper (Orbicular Jasper (Silicon Dioxide, SiO2)) — sedimentary

Leopard Skin Jasper

Orbicular Jasper (Silicon Dioxide, SiO2)

Granite (Phaneritic Igneous Rock (primarily Quartz, Feldspar, Mica)) — igneous

Granite

Phaneritic Igneous Rock (primarily Quartz, Feldspar, Mica)

Weathered sandstone or granitic rock fragment (Indeterminate siliciclastic rock; likely quartz–feldspar–mica aggregate) — igneous

Weathered sandstone or granitic rock fragment

Indeterminate siliciclastic rock; likely quartz–feldspar–mica aggregate

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

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

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

Granite

Granite (composed of Quartz, Feldspar, and Mica)

Granite (Granite (Phaneritic Igneous Rock)) — igneous

Granite

Granite (Phaneritic Igneous Rock)

Granite (Phaneritic Felsic Igneous Rock) — igneous

Granite

Phaneritic Felsic Igneous Rock

Granite River Cobble (Granitoid (comprising Quartz, Feldspar, and Mica)) — igneous

Granite River Cobble

Granitoid (comprising Quartz, Feldspar, and Mica)

Granite (Granite (Felsic Plutonic Rock)) — igneous

Granite

Granite (Felsic Plutonic Rock)

Dalmatian Stone (Dalmatian Stone (formerly called Dalmatian Jasper)) — igneous

Dalmatian Stone

Dalmatian Stone (formerly called Dalmatian Jasper)

Granite (Phaneritic plutonic rock (Quartz, Feldspar, Mica)) — igneous

Granite

Phaneritic plutonic rock (Quartz, Feldspar, Mica)

Biotite granite (weathered granitic rock) (Granite, chiefly quartz–feldspar–biotite; approximate composition SiO₂-rich, with K-feldspar and plagioclase) — igneous

Biotite granite (weathered granitic rock)

Granite, chiefly quartz–feldspar–biotite; approximate composition SiO₂-rich, with K-feldspar and plagioclase

Foliated metamorphic rock, likely mica schist (Mica schist, mainly quartz–feldspar–mica assemblage) — metamorphic

Foliated metamorphic rock, likely mica schist

Mica schist, mainly quartz–feldspar–mica assemblage

Crushed Granite Gravel (Granite (Plagioclase feldspar, Quartz, Alkali feldspar, Biotite)) — igneous

Crushed Granite Gravel

Granite (Plagioclase feldspar, Quartz, Alkali feldspar, Biotite)

Dalmatian Jasper (Peralkaline rhyolite with arfvedsonite inclusions) — igneous

Dalmatian Jasper

Peralkaline rhyolite with arfvedsonite inclusions

Indigo Gabbro (Gabbro (Alkali Gabbro)) — igneous

Indigo Gabbro

Gabbro (Alkali Gabbro)

Granite (Granite) — igneous

Granite

Granite

Dalmation Stone (Dalmation Jasper (Igneous microcrystalline quartz with arfvedsonite)) — igneous

Dalmation Stone

Dalmation Jasper (Igneous microcrystalline quartz with arfvedsonite)

Uncertain—likely weathered granite or quartz-rich rock (Granite (quartz–feldspar–mica aggregate), tentative) — igneous

Uncertain—likely weathered granite or quartz-rich rock

Granite (quartz–feldspar–mica aggregate), tentative

Dalmatian Stone (Aplite (often incorrectly called Dalmatian Jasper)) — igneous

Dalmatian Stone

Aplite (often incorrectly called Dalmatian Jasper)

Polished dark-speckled igneous pebble, likely diorite or gabbro (Probable diorite (plagioclase feldspar and hornblende/biotite); exact identification is uncertain from the image) — igneous

Polished dark-speckled igneous pebble, likely diorite or gabbro

Probable diorite (plagioclase feldspar and hornblende/biotite); exact identification is uncertain from the image