Basalt River Pebble
Basalt (Mafic volcanic rock)
Category
Browse mixed: igneous and sedimentary specimens identified by the Rock Identifier community.
Basalt River Pebble
Basalt (Mafic volcanic rock)
Basalt Pebble
Basalt
Basalt River Pebble
Mafic Igneous Rock (Fine-grained Basalt)
Basalt (River Pebble)
Extrusive Mafic Igneous Rock
Basalt with Plagioclase Phenocrysts
Porphyritic Basalt
Vesicular Basalt with Xenocrysts
Mafic Igneous Plutonic/Extrusive Complex
Basalt with Iron Oxidation
Vesicular Basalt (Aphanitic Mafic Igneous Rock)
Basalt
Basalt (Mafic volcanic rock)
Crushed Rock (Basalt)
Basalt (Aphanitic Mafic Igneous Rock)
River Pebble (Basalt)
Basalt (Aphanitic Mafic Igneous Rock)
Basalt
Basalt (Mafic volcanic rock)
Basalt
Aphanitic Mafic Igneous Rock
Basalt with Quartz Veins
Basalt (SiO2 range 45-52%)
Basalt
Basalt (composition: Plagioclase, Pyroxene, and Olivine)
Basalt River Stone
Basalt (Aphanitic Mafic Igneous Rock)
Basalt
Basalt
Diabase (Dolerite)
Mafic Intrusive Igneous Rock
Granite Pebble
Granite
Porphyritic Andesite
Andesite (Porphyry)
Basalt
Extrusive Mafic Igneous Rock
Granite or Pegmatite with Mica
Granitoid
Basalt
Mafic Igneous Rock (primarily Plagioclase and Pyroxene)
Basalt
Basalt (Mafic volcanic rock)
Basalt
Basalt (Mafic volcanic rock)
Basalt
Basalt (composition of plagioclase feldspar and pyroxene)
Basalt
Basalt
Basalt
Basalt
Basalt
Basalt (Aphanitic Mafic Igneous Rock)
Basalt
Basalt
Basalt (River Stone)
Basalt (Mafic Extrusive Igneous Rock)
Basalt Pebble
Mafic Igneous Rock (Basalt)
Basalt River Stone
Basalt (Mafic volcanic rock)
Basalt
Basalt (Mafic volcanic rock)
Basalt (River Stone)
Basalt
Basalt (Porphyritic)
Porphyritic Basalt
Basalt (River Stone)
Extrusive mafic igneous rock
Basalt
Basalt (extrusive volcanic rock)
Basalt (River Pebble)
Basalt
Olivine in Basalt matrix
Olivine (Magnesium Iron Silicate - (Mg, Fe)2SiO4)
Basalt Pebble
Basalt
Basalt
Basalt (Mafic volcanic rock)
Basalt
Basalt (Mafic igneous rock)