Rock Identifier

Category

Mineral In Igneous Rock

Browse mineral in igneous rock specimens identified by the Rock Identifier community.

Scoria (with likely iron oxidation) (Scoria (Basaltic Scoria)) — igneous

Scoria (with likely iron oxidation)

Scoria (Basaltic Scoria)

Scoria (Extrusive Basaltic Scoria) — igneous

Scoria

Extrusive Basaltic Scoria

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

Vesicular Basalt (or Scoraceous Basalt)

Basalt with vesicular texture

Vesicular Basalt (or Scoria) (Vesicular Basalt) — igneous

Vesicular Basalt (or Scoria)

Vesicular Basalt

Basalt Scoria (Vesicular Basalt) — igneous

Basalt Scoria

Vesicular Basalt

Pink Granite (Phaneritic Felsic Igneous Rock (Rich in K-Feldspar)) — igneous

Pink Granite

Phaneritic Felsic Igneous Rock (Rich in K-Feldspar)

Obsidian (Volcanic Glass (Extrusive Igneous Rock, primarily SiO2)) — igneous

Obsidian

Volcanic Glass (Extrusive Igneous Rock, primarily SiO2)

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

Granite

Phaneritic intrusive igneous rock (Quartz, Feldspar, Mica)

Serpentine (Antigorite, Lizardite, or Chrysotile (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4) — metamorphic

Serpentine

Antigorite, Lizardite, or Chrysotile (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4

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

Basalt River Pebble

Basalt (Mafic volcanic rock)

Basalt (Basalt (Mafic volcanic rock)) — igneous

Basalt

Basalt (Mafic volcanic rock)

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

Red Granite

Felsic Plutonic Rock (Granite)

Pumice (Pumice (Vesicular Rhyolite/Andesite)) — igneous

Pumice

Pumice (Vesicular Rhyolite/Andesite)

Pink Granite (Phaneritic Plutonic Felsic Rock (rich in Potassium Feldspar)) — igneous

Pink Granite

Phaneritic Plutonic Felsic Rock (rich in Potassium Feldspar)

Granodiorite (containing Biotite and Quartz) (Granodiorite (Plagioclase-rich phaneritic intrusive rock)) — igneous

Granodiorite (containing Biotite and Quartz)

Granodiorite (Plagioclase-rich phaneritic intrusive rock)

Granodiorite (Granodiorite) — igneous

Granodiorite

Granodiorite

Basalt (Basalt) — igneous

Basalt

Basalt

Porphyritic Rhyolite (Cookie Stone) (Porphyritic Rhyolite (SiO2, with phenocrysts)) — igneous

Porphyritic Rhyolite (Cookie Stone)

Porphyritic Rhyolite (SiO2, with phenocrysts)

Milky Quartz with Mineral Inclusions (Silicon Dioxide (SiO2)) — mineral

Milky Quartz with Mineral Inclusions

Silicon Dioxide (SiO2)

Sandstone (with secondary weathering/concretion) (Arenite (composed primarily of Quartz, SiO2)) — sedimentary

Sandstone (with secondary weathering/concretion)

Arenite (composed primarily of Quartz, SiO2)

Quartz Vein in Host Rock (Silicon Dioxide (SiO2) in matrix) — Mineral in Metamorphic/Igneous Host

Quartz Vein in Host Rock

Silicon Dioxide (SiO2) in matrix

Mineral in Metamorphic/Igneous Host

Hematite (Iron(III) oxide (Fe2O3)) — mineral

Hematite

Iron(III) oxide (Fe2O3)

Gneiss (Banded Gneiss) (Gneiss) — metamorphic

Gneiss (Banded Gneiss)

Gneiss

Amazonite (KAlSi3O8 (Potassium Feldspar, variety of Microcline)) — Mineral

Amazonite

KAlSi3O8 (Potassium Feldspar, variety of Microcline)

Sandstone (with potential mineral staining/concretions) (Arenite (SiO2 based)) — sedimentary

Sandstone (with potential mineral staining/concretions)

Arenite (SiO2 based)

Quartz (Milky/Common Quartz) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky/Common Quartz)

Silicon Dioxide (SiO2)

Sandstone (Iron-stained) (Arenite (composed primarily of SiO2 with Fe2O3 staining)) — sedimentary

Sandstone (Iron-stained)

Arenite (composed primarily of SiO2 with Fe2O3 staining)

Granite (Granite (Felsic Plutonic Rock)) — igneous

Granite

Granite (Felsic Plutonic Rock)

Basalt (Basalt (Mafic Volcanic Rock)) — igneous

Basalt

Basalt (Mafic Volcanic Rock)

Pink Granite (Phaneritic Plutonic Felsic Rock) — igneous

Pink Granite

Phaneritic Plutonic Felsic Rock

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

Granite Pebble

Granite (Felsic Plutonic Rock)

Gabbro Pebble (Gabbro (intrusive mafic rock)) — igneous

Gabbro Pebble

Gabbro (intrusive mafic rock)

Banded Rhyolite (Rhyolite (felsic volcanic rock)) — igneous

Banded Rhyolite

Rhyolite (felsic volcanic rock)

Scoria (Scoria (vesicular volcanic rock)) — igneous

Scoria

Scoria (vesicular volcanic rock)

Granite (Granite (Felsic Plutonic Rock)) — igneous

Granite

Granite (Felsic Plutonic Rock)

Granite (Granite (Felsic Plutonic Rock)) — igneous

Granite

Granite (Felsic Plutonic Rock)

Basalt (Basalt (Mafic volcanic rock)) — igneous

Basalt

Basalt (Mafic volcanic rock)

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

Pink Granite

Granite (Felsic Plutonic Rock)

Diorite (Phaneritic Intermediate Plutonic Rock) — Igneous

Diorite

Phaneritic Intermediate Plutonic Rock

Porphyritic Basalt (or Andesite) Pebble (Porphyritic Mafic Volcanic Rock) — igneous

Porphyritic Basalt (or Andesite) Pebble

Porphyritic Mafic Volcanic Rock

Basalt (Polished Pebble) (Basalt (Mafic volcanic rock)) — igneous

Basalt (Polished Pebble)

Basalt (Mafic volcanic rock)

Porphyritic Andesite (Intermediate Volcanic Rock - Andesite) — Igneous

Porphyritic Andesite

Intermediate Volcanic Rock - Andesite