Basalt
Basalt (Mafic volcanic rock)
Category
Browse mixed: igneous and sedimentary specimens identified by the Rock Identifier community.
Basalt
Basalt (Mafic volcanic rock)
Basalt
Extrusive mafic igneous rock
Basalt with Quartz/Calcite Inclusions
Mafic Volcanic Rock (Fe-Mg silicate rich)
Basalt (Polished River Stone)
Mafic Volcanic Rock (primarily Plagioclase and Pyroxene)
Basalt
Mafic Igneous Rock (primarily Plagioclase Feldspar and Pyroxene)
Basalt
Extrusive mafic igneous rock
Basalt (Road Gravel)
Aphanitic mafic volcanic rock (various compositions of plagioclase feldspar and pyroxene)
Basalt
Mafic Volcanic Rock (composed of plagioclase, pyroxene, and olivine)
Basalt
Basalt
Basalt River Stone
Basalt
Basalt (River-worn Specimen)
Extrusive Mafic Igneous Rock
Basalt
Extrusive mafic igneous rock
Basalt
Basalt (Mafic Extrusive Igneous Rock)
Basalt Pebble
Basalt (Aphanitic Mafic Igneous Rock)
Basalt River Stone
Extrusive Mafic Igneous Rock (primarily Plagioclase Feldspar and Pyroxene)
Basalt (River Pebble)
Basalt (Aphanitic Mafic Igneous Rock)
Vesicular Basalt
Basalt with vesicular texture
Basalt
Basalt (Mafic Extrusive Igneous Rock)
Basalt
Extrusive mafic igneous rock
Basalt Pebble
Aphanitic mafic volcanic rock
Basalt (Gravel Pebble)
Basalt (contains pyroxene, plagioclase feldspar, and olivine)
Basalt
Mafic volcanic rock (Basalt)
Vesicular Basalt
Extrusive Mafic Igneous Rock
Basalt (Porphyritic)
Basalt (Mafic Extrusive Igneous Rock)
Basalt (Weathered/Tumbled)
Extrusive Mafic Igneous Rock
Basalt (River Pebble)
Basalt (Aphanitic Mafic Volcanic Rock)
Basalt
Basalt (predominantly Plagioclase Feldspar and Pyroxene)
Basalt
Basalt (Mafic volcanic rock)
Basalt
Extrusive mafic igneous rock
Basalt
Basalt (composition of plagioclase feldspar, pyroxene, and olivine)
Basalt
Basalt (Aphanitic Mafic Igneous Rock)
Basalt with Iron Oxidation
Mafic Igneous Rock (primarily Plagioclase and Pyroxene)
Basalt
Extrusive mafic igneous rock
Basalt (Vesicular)
Basalt (Extrusive Mafic Igneous Rock)
Basalt Pebble
Basalt
Basalt
Basalt
Basalt with Epidote Veins
Mafic Igneous Rock (Basalt)
Basalt
Extrusive mafic igneous rock
Basalt River Pebble
Extrusive mafic igneous rock; primarily composed of Plagioclase Feldspar and Pyroxene
Granite
Granite
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Basalt
Extrusive mafic igneous rock