Basalt
Basalt (Mafic volcanic rock)
igneous
Category
Basalt
Browse basalt specimens identified by the Rock Identifier community.
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Basalt
Basalt (Mafic volcanic rock)
igneous
Basalt
Basalt (composition of plagioclase feldspar, pyroxene, and olivine)
igneous
Basalt
Basalt (Mafic Extrusive Igneous Rock)
igneous
Basalt
Extrusive mafic igneous rock
igneous
Basalt
Extrusive mafic igneous rock
igneous
Basalt
Extrusive mafic igneous rock
igneous
Basalt
Aphanitic Mafic Igneous Rock
igneous
Basalt
Basalt (extrusive igneous rock)
Igneous
Basalt
Basalt (Mafic volcanic rock)
igneous
Basalt
Extrusive mafic igneous rock
igneous
Basalt
Basalt (Mafic volcanic rock)
igneous
Basalt
Basalt (Mafic Extrusive)
igneous
Basalt
Extrusive Mafic Igneous Rock
igneous
Basalt
Extrusive mafic igneous rock
igneous
Basalt
Basalt (Phaneritic/Aphanitic Mafic Igneous Rock)
igneous
Basalt
Basalt (Vitreous to Fine-grained Extrusive Igneous Rock)
igneous
Basalt
Basalt (Mafic volcanic rock)
igneous
Basalt
Extrusive mafic igneous rock
igneous
Basalt
Basalt (Mafic volcanic rock)
Igneous
Basalt
Basalt (Mafic volcanic rock)
igneous
Basalt
Basalt (Aphanitic Mafic Igneous Rock)
igneous
Basalt
Basalt (composition predominately Plagioclase feldspar and Pyroxene)
igneous
Basalt
Mafic Igneous Rock
igneous
Basalt
Basalt (Mafic volcanic rock)
igneous
Basalt
Basalt (principally composed of pyroxene and plagioclase feldspar)
igneous
Basalt
Mafic Igneous Basalt
igneous
Basalt
Mafic volcanic rock (Basalt)
igneous
Basalt
Basalt (composition: Plagioclase, Pyroxene, and Olivine)
igneous
Basalt
Extrusive mafic igneous rock
igneous
Fine-grained green-gray rock pebble, likely basalt or greenstone
Probable basalt (plagioclase and pyroxene), possibly altered to greenstone
igneous
Rounded volcanic boulder, likely basalt
Basalt (fine-grained mafic volcanic rock; identification is provisional from the image)
igneous
Likely polished black stone; possibly basalt or black chert
Indeterminate from the blurred image; candidates include basalt (mafic volcanic rock) or microcrystalline quartz (chert)
igneous or sedimentary
Dark gray fine-grained rock, possibly basalt
Basalt; primarily plagioclase feldspar and pyroxene, with possible olivine or magnetite
igneous
Gabbro
Phaneritic mafic intrusive igneous rock
igneous
Vesicular Basalt (Lava Rock)
Vesicular Basalt (comprising plagioclase feldspar and pyroxene group minerals)
igneous
Basalt (Polished Pebble)
Basalt (Mafic volcanic rock)
igneous
Vesicular Basalt
Basalt with vesicular texture
igneous
Vesicular Basalt with Quartz
Vesicular Basalt (SiO2 inclusions)
igneous
Gabbro
Gabbro
igneous
Vesicular Basalt
Basalt (Mafic volcanic rock)
igneous
Fine-grained gray rock, likely andesite or basalt
Aphanitic volcanic rock; probable basaltic-andesite (plagioclase ± pyroxene, minor iron oxides)
igneous