Rock Identifier

Category

Basalt

Browse basalt specimens identified by the Rock Identifier community.

Basalt (Basalt (composition of plagioclase, pyroxene, and olivine)) — igneous

Basalt

Basalt (composition of plagioclase, pyroxene, and olivine)

Scoria (Vesicular Basalt / Scoriaceous Basalt) — igneous

Scoria

Vesicular Basalt / Scoriaceous Basalt

Scoria (Vesicular Basalt / Scoriaceous Basalt) — igneous

Scoria

Vesicular Basalt / Scoriaceous Basalt

Basalt with Scoria (Amygdaloidal Basalt / Vesicular Basalt) — igneous

Basalt with Scoria

Amygdaloidal Basalt / Vesicular Basalt

Basalt (Vesicular and Ropey) (Vesicular Basalt / Pahoehoe Basalt) — igneous

Basalt (Vesicular and Ropey)

Vesicular Basalt / Pahoehoe Basalt

Basalt (Basalt (Mafic volcanic rock)) — igneous

Basalt

Basalt (Mafic volcanic rock)

Okenite (in Zeolite matrix) (Okenite (CaSi2O5 · 2H2O)) — mineral

Okenite (in Zeolite matrix)

Okenite (CaSi2O5 · 2H2O)

Basalt (Basalt (Mafic volcanic rock)) — igneous

Basalt

Basalt (Mafic volcanic rock)

Vesicular Basalt (Basalt with vesicular texture) — igneous

Vesicular Basalt

Basalt with vesicular texture

Basalt (Mafic Igneous Rock (composed primarily of Pyroxene and Plagioclase Feldspar)) — igneous

Basalt

Mafic Igneous Rock (composed primarily of Pyroxene and Plagioclase Feldspar)

Basalt (Basalt (Mafic volcanic rock)) — igneous

Basalt

Basalt (Mafic volcanic rock)

Vesicular Basalt (Aphanitic Mafic Igneous Rock (with Vesicular Texture)) — igneous

Vesicular Basalt

Aphanitic Mafic Igneous Rock (with Vesicular Texture)

Basalt (Concrete Aggregate) (Basalt (Mafic volcanic rock)) — igneous

Basalt (Concrete Aggregate)

Basalt (Mafic volcanic rock)

Basalt (Basalt (Mafic igneous rock)) — igneous

Basalt

Basalt (Mafic igneous rock)

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

Basalt

Basalt (Aphanitic Mafic Volcanic Rock)

Basalt (Basalt (primarily composed of Plagioclase feldspar and Pyroxene)) — igneous

Basalt

Basalt (primarily composed of Plagioclase feldspar and Pyroxene)

Basalt (Extrusive mafic igneous rock) — igneous

Basalt

Extrusive mafic igneous rock

Basalt (Mafic Igneous Rock (primarily Plagioclase and Pyroxene)) — igneous

Basalt

Mafic Igneous Rock (primarily Plagioclase and Pyroxene)

Basalt (Basalt (composition of plagioclase feldspar and pyroxene)) — Igneous

Basalt

Basalt (composition of plagioclase feldspar and pyroxene)

Basalt (Mafic Igneous Rock (composed primarily of Pyroxene and Plagioclase Feldspar)) — igneous

Basalt

Mafic Igneous Rock (composed primarily of Pyroxene and Plagioclase Feldspar)

Basalt (Mafic igneous rock (primarily Plagioclase feldspar and Pyroxene)) — igneous

Basalt

Mafic igneous rock (primarily Plagioclase feldspar and Pyroxene)

Basalt with vesicles (Amygdaloidal Basalt) (Amygdaloidal Basalt (predominantly Plagioclase and Pyroxene)) — igneous

Basalt with vesicles (Amygdaloidal Basalt)

Amygdaloidal Basalt (predominantly Plagioclase and Pyroxene)

Basalt (Extrusive mafic igneous rock; primarily (Ca,Na)(Mg,Fe,Al,Si)2O6 with (Ca,Na)(Al,Si)4O8) — igneous

Basalt

Extrusive mafic igneous rock; primarily (Ca,Na)(Mg,Fe,Al,Si)2O6 with (Ca,Na)(Al,Si)4O8

Basalt with Scoria/Vesicular Texture (Vesicular Basalt (Iron-rich/Oxidized)) — igneous

Basalt with Scoria/Vesicular Texture

Vesicular Basalt (Iron-rich/Oxidized)

Quartz Druzy on Basalt (Silicon Dioxide (SiO2) on Mafic Volcanic Rock) — Mineral on Igneous Rock

Quartz Druzy on Basalt

Silicon Dioxide (SiO2) on Mafic Volcanic Rock

Mineral on Igneous Rock

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

Basalt

Mafic volcanic rock (primarily Plagioclase and Pyroxene)

Basalt (Basalt (Mafic volcanic rock)) — igneous

Basalt

Basalt (Mafic volcanic rock)

Basalt (Mafic Igneous Rock (composed primarily of Plagioclase and Pyroxene)) — igneous

Basalt

Mafic Igneous Rock (composed primarily of Plagioclase and Pyroxene)

River Stone (Basalt Porphyry) (Porphyritic Basalt) — igneous

River Stone (Basalt Porphyry)

Porphyritic Basalt

Basalt (Basalt (dominated by plagioclase feldspar and pyroxene minerals)) — Igneous

Basalt

Basalt (dominated by plagioclase feldspar and pyroxene minerals)

Vesicular Basalt (Extrusive Mafic Igneous Rock (composed of Plagioclase feldspar, Pyroxene, and Olivine)) — igneous

Vesicular Basalt

Extrusive Mafic Igneous Rock (composed of Plagioclase feldspar, Pyroxene, and Olivine)

Basalt (Basalt (extrusive igneous rock)) — Igneous

Basalt

Basalt (extrusive igneous rock)

Sunstone (Oregon Sunstone) (Labradorite (Feldspar variety) - (Ca, Na)(Al, Si)4O8) — mineral

Sunstone (Oregon Sunstone)

Labradorite (Feldspar variety) - (Ca, Na)(Al, Si)4O8

Vesicular Basalt (Amygdaloidal) (Amygdaloidal Basalt) — igneous

Vesicular Basalt (Amygdaloidal)

Amygdaloidal Basalt

Basalt (Basalt (Mafic volcanic rock)) — igneous

Basalt

Basalt (Mafic volcanic rock)

Basalt (Basalt (Mafic Extrusive Igneous Rock)) — igneous

Basalt

Basalt (Mafic Extrusive Igneous Rock)

Vesicular Basalt (commonly mistaken for Slag) (Scoriaceous Basalt (composed primarily of Plagioclase Feldspar and Pyroxene)) — igneous

Vesicular Basalt (commonly mistaken for Slag)

Scoriaceous Basalt (composed primarily of Plagioclase Feldspar and Pyroxene)

Basalt Pebble (Basalt (Mafic volcanic rock)) — Igneous

Basalt Pebble

Basalt (Mafic volcanic rock)

Basalt (Basalt (Volcanic Mafic Rock)) — igneous

Basalt

Basalt (Volcanic Mafic Rock)

Basalt (Mafic volcanic rock (primarily plagioclase feldspar and pyroxene)) — Igneous

Basalt

Mafic volcanic rock (primarily plagioclase feldspar and pyroxene)

Basalt (Mafic Igneous Rock (primarily Plagioclase and Pyroxene)) — igneous

Basalt

Mafic Igneous Rock (primarily Plagioclase and Pyroxene)

Basalt (Basalt (extrusive volcanic rock)) — igneous

Basalt

Basalt (extrusive volcanic rock)