Basalt
Mafic Igneous Rock (primarily Plagioclase and Pyroxene)
Category
Browse sedimentary or igneous specimens identified by the Rock Identifier community.
Basalt
Mafic Igneous Rock (primarily Plagioclase and Pyroxene)
Basalt River Pebble
Basalt (fine-grained mafic igneous rock)
Granite
Phaneritic Acidic Igneous Rock (Granite Group)
Vesicular Basalt
Vesicular Basalt (Aphanitic Mafic Igneous Rock)
Basalt with Calcite Veining
Aphanitic Mafic Igneous Rock (Basalt) with CaCO3
K2 Azurite Granite / K2 Stone
Granite (igneous rock) with Azurite inclusions (mineral)
Granodiorite
Granodiorite (calc-alkaline phaneritic igneous rock)
Basalt-Amugydule (Amygdaloidal Basalt)
Aphanitic Mafic Igneous Rock with Vesicle Infillings
Basalt River Pebble
Mafic Igneous Rock (Fine-grained Basalt)
Basalt (Stream-worn Cobble)
Mafic Igneous Rock (primarily Plagioclase and Pyroxene)
Scoria (Lava Rock)
Scoria (highly vesicular extrusive igneous rock)
Granite
Phaneritic Plutonic Igneous Rock (Rich in SiO2)
Basalt
Basalt (Phaneritic/Aphanitic Mafic Igneous Rock)
Pegmatite
Coarse-grained Igneous Rock (Granitic Pegmatite)
Vesicular Basalt (or Scoria)
Basalt (Aphanitic-Vesicular Mafic Igneous Rock)
Basalt with Iron Oxidation
Vesicular Basalt (Aphanitic Mafic Igneous Rock)
Basalt with Iron Oxidation
Mafic Igneous Rock (primarily Plagioclase and Pyroxene)
Scoria (Lava Rock)
Scoria (Extrusive Igneous Rock / Mafic Silicates)
Vesicular Basalt
Extrusive Mafic Igneous Rock (Vesicular Basalt)
Biotite Mica
K(Mg,Fe2+)3(Al,Fe3+)Si3O10(OH,F)2
Aquamarine
Beryl (Be3Al2Si6O18), specifically the blue-green variety
Granodiorite
Granodiorite (Intermediate intrusive igneous rock)
Diorite
Diorite (Intermediate intrusive igneous rock)
Granite Pebble (Salt and Pepper Granite)
Felsic Intrusive Igneous Rock (Granite)
Granite
Phaneritic Felsic Intrusive Igneous Rock
Pink Granite
Phaneritic Felsic Intrusive Igneous Rock
Basalt
Basalt (Mafic Extrusive Igneous Rock)
Granite
Granite (Felsic intrusive igneous rock)
Diorite
Diorite (intermediate intrusive igneous rock)
Granite
Granite (Felsic intrusive igneous rock)
Granite (specifically the Ubatuba variety)
Phaneritic Igneous Rock (Granodiorite/Monzogranite)
Basalt (Weathered River Stone)
Basalt (Extrusive Mafic Igneous Rock)
Pink Granite
Granite (Phaneritic Felsic Igneous Rock)
Diorite
Diorite (Intermediate intrusive igneous rock)
Scoria (Lava Rock)
Aphanitic vesicular mafic igneous rock
Diorite
Diorite (Intermediate intrusive igneous rock)
Granite
Granite (Phaneritic Acid Igneous Rock)
Basalt (River Rock pebble)
Basalt (a mafic extrusive igneous rock)
Granodiorite
Granodiorite (Intermediate intrusive igneous rock)
Basalt
Basalt (Mafic Extrusive Igneous Rock)
Granite Pebble
Granite (Phaneritic intrusive igneous rock)
Basalt with Quartz/Calcite Veins
Basalt (Aphanitic Mafic Igneous Rock)