Basalt with Quartz Vein
Mafic Igneous Rock (SiO2 filling)
Category
Browse mixed: igneous and sedimentary specimens identified by the Rock Identifier community.
Basalt with Quartz Vein
Mafic Igneous Rock (SiO2 filling)
Basalt
Basalt
Basalt
Mafic volcanic rock (Primarily Plagioclase Feldspar and Pyroxene)
Basalt
Extrusive mafic igneous rock
Basalt Pebble
Basalt
Basalt
Extrusive mafic igneous rock
Basalt
Extrusive mafic igneous rock
Basalt with Hematite staining
Extrusive mafic igneous rock with Fe2O3
Basalt
Basalt
Basalt
Basalt (Mafic volcanic rock)
Basalt
Basalt
Vesicular Basalt (or Scoria)
Basalt (Aphanitic-Vesicular Mafic Igneous Rock)
Basalt (River Stone)
Mafic volcanic rock
Basalt
Basalt (Mafic igneous rock)
Basalt with Epidote Veins
Mafic Igneous Rock (Basalt)
Andesite
Intermediate Volcanic Rock (Andesite)
Andesite
Andesite (Intermediate Extrusive Igneous Rock)
Andesite
Andesite (intermediate volcanic rock)
Pink Granite
Phaneritic Plutonic Igneous Rock (high K-feldspar)
Granite Pebble
Phaneritic Felsic Igneous Rock
Pumice or Scoria
Vesicular volcanic rock
Basalt (River Pebble)
Basalt
Basalt
Extrusive mafic igneous rock
Basalt Riverstone
Basalt (Aphanitic Mafic Volcanic Rock)
Basalt
Basalt (Mafic Volcanic Rock)
Basalt (River Rock Cobble)
Extrusive mafic igneous rock
Basalt with Vesicles
Vesicular Basalt
Basalt
Extrusive mafic rock (Basalt)
Basalt
Basalt (composition of plagioclase, pyroxene, and olivine)
Basalt with Plagioclase Phenocrysts
Porphyritic Basalt
Basalt
Mafic Igneous Rock (composed primarily of Pyroxene and Plagioclase Feldspar)
Basalt (with possible weathering or secondary mineral crust)
Basalt (Aphanitic Mafic Igneous Rock)
Basalt (Beach Pebble)
Extrusive mafic volcanic rock
Basalt
Basalt (Vitreous to Aphanitic Mafic Igneous Rock)
Vesicular Basalt
Basalt with secondary mineral infilling (Amygdaloidal Basalt)
Basalt
Basalt
Basalt Pebble
Aphanitic Mafic Igneous Rock
Basalt
Basalt
Basalt River Pebble
Basalt
Basalt (Vesicular or Scoriaceous)
Aphanitic Mafic Volcanic Rock
Basalt River Pebble
Basalt
Basalt
Basalt (containing Pyroxene, Plagioclase feldspar, and Olivine)