Rock Identifier

Category

Igneous

Browse igneous specimens identified by the Rock Identifier community.

Learn about Igneous in the encyclopedia

Sölvsbergite

Sölvsbergite

Mint Obsidian

Mint Obsidian

Minette

Minette

Yellow-Green Obsidian

Yellow-Green Obsidian

Bostonite

Bostonite

Yellow Obsidian

Yellow Obsidian

Tinguaite

Tinguaite

Wonderstone

Wonderstone

Wehrite

Wehrite

Watermelon Obsidian

Watermelon Obsidian

Websterite

Websterite

Variolite

Variolite

Pumice (Pumice (volcanic glass foam)) — igneous

Pumice

Pumice (volcanic glass foam)

Pumice (Pumice (Amorphous volcanic glass)) — igneous

Pumice

Pumice (Amorphous volcanic glass)

Snowflake Obsidian (Spherulitic Obsidian (primarily SiO2)) — igneous

Snowflake Obsidian

Spherulitic Obsidian (primarily SiO2)

Diorite (Diorite (Intermediate Plutonic Rock)) — igneous

Diorite

Diorite (Intermediate Plutonic Rock)

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

Granite

Granite (composed primarily of Quartz, Alkali Feldspar, and Plagioclase)

Vesicular Basalt with Epidote/Amygdaloidal Basalt (Amygdaloidal Basalt (Mg, Fe)2SiO4 + Ca2(Al, Fe)3(SiO4)3(OH)) — igneous

Vesicular Basalt with Epidote/Amygdaloidal Basalt

Amygdaloidal Basalt (Mg, Fe)2SiO4 + Ca2(Al, Fe)3(SiO4)3(OH)

Scoria (Vesicular Basalt / Scoria) — igneous

Scoria

Vesicular Basalt / Scoria

Vesicular Basalt (Amygdaloidal) (Amygdaloidal Basalt (Mafic volcanic rock)) — igneous

Vesicular Basalt (Amygdaloidal)

Amygdaloidal Basalt (Mafic volcanic rock)

Granite River Pebble (Granite) — igneous

Granite River Pebble

Granite

Granite (Phaneritic Plutonic Felsic Rock) — igneous

Granite

Phaneritic Plutonic Felsic Rock

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

Diorite (Salt and Pepper Rock)

Diorite

Basalt (Vesicular) (Vesicular Basalt) — Igneous

Basalt (Vesicular)

Vesicular Basalt

Basalt (Basalt) — igneous

Basalt

Basalt

Labradorite (a variety of Anorthosite or Plagioclase) (Labradorite (member of Plagioclase Feldspar series), (Ca,Na)(Al,Si)4O8) — igneous

Labradorite (a variety of Anorthosite or Plagioclase)

Labradorite (member of Plagioclase Feldspar series), (Ca,Na)(Al,Si)4O8

Diorite (Pebble) (Diorite) — igneous

Diorite (Pebble)

Diorite

Diorite (Diorite (Intermediate Plutonic Rock)) — igneous

Diorite

Diorite (Intermediate Plutonic Rock)

Obsidian (Volcanic glass (mainly SiO2)) — Igneous

Obsidian

Volcanic glass (mainly SiO2)

Vesicular Basalt with Pyrite (Basalt (MgFe2+)(Si,Al)2O6 containing FeS2 inclusions) — igneous

Vesicular Basalt with Pyrite

Basalt (MgFe2+)(Si,Al)2O6 containing FeS2 inclusions

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

Basalt Cobble

Vesicular Basalt (Mafic Extrusive)

Basalt with Quartz/Calcite Veins (Amygdaloidal Basalt (SiO2 or CaCO3 inclusions)) — igneous

Basalt with Quartz/Calcite Veins

Amygdaloidal Basalt (SiO2 or CaCO3 inclusions)

Obsidian (Obsidian (Volcanic Glass), primarily SiO2 (Silicon Dioxide)) — igneous

Obsidian

Obsidian (Volcanic Glass), primarily SiO2 (Silicon Dioxide)

Pumice (Pumice (volcanic glass with vesicular texture)) — igneous

Pumice

Pumice (volcanic glass with vesicular texture)

Granite (Granite (phaneritic intrusive igneous rock consisting of 20-60% quartz, orthoclase/plagioclase feldspar, and mica/amphibole)) — igneous

Granite

Granite (phaneritic intrusive igneous rock consisting of 20-60% quartz, orthoclase/plagioclase feldspar, and mica/amphibole)

Pumice (Pumice (Vesicular Rhyolite)) — igneous

Pumice

Pumice (Vesicular Rhyolite)

Granite (Phaneritic Plutonic Felsic Rock (SiO2 > 69%)) — igneous

Granite

Phaneritic Plutonic Felsic Rock (SiO2 > 69%)

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

Granite

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

Basalt (Basalt (Mafic volcanic rock)) — igneous

Basalt

Basalt (Mafic volcanic rock)

Pumice (Pumicite / Vesicular Rhyolite) — igneous

Pumice

Pumicite / Vesicular Rhyolite

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

Pink Granite

Granite (Felsic Plutonic Rock)

Granodiorite (Granodiorite (Quartz-Feldspar-Biotite Plutonic Rock)) — igneous

Granodiorite

Granodiorite (Quartz-Feldspar-Biotite Plutonic Rock)

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

Diorite (Salt and Pepper Rock)

Diorite

Basalt River Pebble (Basalt) — igneous

Basalt River Pebble

Basalt

Basalt with Olivine inclusion (Mafic Volcanic Basalt (Fe,Mg)2SiO4) — igneous

Basalt with Olivine inclusion

Mafic Volcanic Basalt (Fe,Mg)2SiO4

Basalt (Basalt) — igneous

Basalt

Basalt

Scoria (Red Lava Rock) (Scoria) — igneous

Scoria (Red Lava Rock)

Scoria

Pumice (Pumice (Vesicular volcanic glass)) — igneous

Pumice

Pumice (Vesicular volcanic glass)

Tumbled Obsidian (possibly Mahogany Obsidian variant) (Volcanic Glass (Amorphous Silicon Dioxide, SiO2)) — igneous

Tumbled Obsidian (possibly Mahogany Obsidian variant)

Volcanic Glass (Amorphous Silicon Dioxide, SiO2)

Basalt (Mafic volcanic rock (various silicate minerals including Pyroxene and Plagioclase)) — igneous

Basalt

Mafic volcanic rock (various silicate minerals including Pyroxene and Plagioclase)

Granite Cobble / Rounded Granite River Rock (Granite) — Igneous

Granite Cobble / Rounded Granite River Rock

Granite

Obsidian (Obsidian (Volcanic Glass), primarily SiO2 (Silicon Dioxide)) — igneous

Obsidian

Obsidian (Volcanic Glass), primarily SiO2 (Silicon Dioxide)

Granite (Granite (Felsic Plutonic Rock)) — igneous

Granite

Granite (Felsic Plutonic Rock)

Obsidian (Volcanic Glass (SiO2)) — igneous

Obsidian

Volcanic Glass (SiO2)