Rock Identifier

Category

Basalt

Browse basalt specimens identified by the Rock Identifier community.

Learn about Basalt in the encyclopedia

Basalt

Tholeiitic Basalt

Tholeiitic Basalt

Metabasalt

Variolite

Tachylite

Gabbro

Sideromelane

Palagonite

Diabase

Greenstone

Limburgite

Scoria

Copper Ore (Native Copper (Cu) often found with Chalcocite (Cu2S) or Bornite (Cu5FeS4)) — mineral

Copper Ore

Native Copper (Cu) often found with Chalcocite (Cu2S) or Bornite (Cu5FeS4)

Basalt (Extrusive Igneous Rock (Mafic)) — igneous

Basalt

Extrusive Igneous Rock (Mafic)

Basalt (Extrusive Igneous Rock (Mafic)) — igneous

Basalt

Extrusive Igneous Rock (Mafic)

Basalt (Mafic extrusive igneous rock) — igneous

Basalt

Mafic extrusive igneous rock

Basalt (Aphanitic Mafic Igneous Rock) — igneous

Basalt

Aphanitic Mafic Igneous Rock

Banded vesicular basalt (likely weathered lava cobble) (Vesicular basalt, chiefly plagioclase, pyroxene, and iron-rich glass/oxides) — igneous

Banded vesicular basalt (likely weathered lava cobble)

Vesicular basalt, chiefly plagioclase, pyroxene, and iron-rich glass/oxides

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

Basalt (Porphyritic Basalt)

Extrusive Igneous Rock

Basalt (Extrusive Igneous Rock) — igneous

Basalt

Extrusive Igneous Rock

Basalt (Aphanitic Mafic Igneous Rock) — igneous

Basalt

Aphanitic Mafic Igneous Rock

Basalt (Extrusive igneous rock) — igneous

Basalt

Extrusive igneous rock

Basalt (Extrusive Igneous Rock) — igneous

Basalt

Extrusive Igneous Rock

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

Basalt

Basalt (Mafic Extrusive Igneous Rock)

Basalt (Basalt (extrusive volcanic rock)) — igneous

Basalt

Basalt (extrusive volcanic rock)

Vesicular Basalt (Amygdaloidal) (Amygdaloidal Basalt) — igneous

Vesicular Basalt (Amygdaloidal)

Amygdaloidal Basalt

Dark basalt or fine-grained mafic rock (Basalt, composed mainly of plagioclase feldspar, pyroxene, and commonly olivine) — igneous

Dark basalt or fine-grained mafic rock

Basalt, composed mainly of plagioclase feldspar, pyroxene, and commonly olivine

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)

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

Basalt

Basalt (Mafic Extrusive Igneous Rock)

Basalt (Extrusive igneous rock) — igneous

Basalt

Extrusive igneous rock

Basalt (Mafic Volcanic Rock) — igneous

Basalt

Mafic Volcanic Rock

Basalt (Extrusive mafic igneous rock) — igneous

Basalt

Extrusive mafic igneous rock

Basalt (Basalt (Mafic volcanic rock)) — igneous

Basalt

Basalt (Mafic volcanic rock)

Basalt (Aphanitic Mafic Igneous Rock) — igneous

Basalt

Aphanitic Mafic Igneous Rock

Basalt (Aphanitic Mafic Volcanic Rock) — igneous

Basalt

Aphanitic Mafic Volcanic Rock

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

Gabbro

Gabbro (mafic intrusive igneous rock)

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

Porphyritic Basalt

Porphyritic Basalt (with Plagioclase phenocrysts)

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

Basalt

Basalt (Mafic Extrusive Igneous Rock)

Basalt (Basalt (Mafic volcanic rock)) — Igneous

Basalt

Basalt (Mafic volcanic rock)

Basalt (Extrusive Igneous Rock) — igneous

Basalt

Extrusive Igneous Rock

Basalt (Mafic extrusive igneous rock) — igneous

Basalt

Mafic extrusive igneous rock

Basalt (Extrusive Igneous Rock) — igneous

Basalt

Extrusive Igneous Rock

Basalt (Mafic extrusive igneous rock) — igneous

Basalt

Mafic extrusive igneous rock

Basalt (Extrusive Igneous Rock) — igneous

Basalt

Extrusive Igneous Rock

Basalt (Extrusive Igneous Rock) — igneous

Basalt

Extrusive Igneous Rock

Basalt (Basalt (Mafic Volcanic Rock)) — igneous

Basalt

Basalt (Mafic Volcanic Rock)

Basalt (Basalt (containing Pyroxene and Plagioclase Feldspar)) — igneous

Basalt

Basalt (containing Pyroxene and Plagioclase Feldspar)

Basalt (Basalt (Mafic igneous rock)) — igneous

Basalt

Basalt (Mafic igneous rock)

Basalt (Aphanitic Mafic Igneous Rock) — igneous

Basalt

Aphanitic Mafic Igneous Rock

Basalt (Basalt (composition of Plagioclase feldspar, Pyroxene, and Olivine)) — igneous

Basalt

Basalt (composition of Plagioclase feldspar, Pyroxene, and Olivine)

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

Basalt

Basalt (Aphanitic Mafic Igneous Rock)

Likely weathered basalt or andesite fragment (Fine-grained volcanic rock, likely basaltic-andesite; exact identification requires testing) — igneous

Likely weathered basalt or andesite fragment

Fine-grained volcanic rock, likely basaltic-andesite; exact identification requires testing

Basalt (Basalt; fine-grained mafic volcanic rock composed mainly of plagioclase and pyroxene, commonly with olivine) — igneous

Basalt

Basalt; fine-grained mafic volcanic rock composed mainly of plagioclase and pyroxene, commonly with olivine