Granite
Intrusive Igneous Rock (composed primarily of quartz, alkali feldspar, and plagioclase)
Category
Browse mineral in igneous rock specimens identified by the Rock Identifier community.
Granite
Intrusive Igneous Rock (composed primarily of quartz, alkali feldspar, and plagioclase)
Basalt
Mafic Igneous Rock
Granite
Plutonic Igneous Rock (composed typically of SiO2, Al2O3, K2O, Na2O, CaO)
Granite
Granite (a plutonic rock)
Quartz Crystal Point
Silicon Dioxide (SiO2)
Granite-like granitic rock
Crystalline plutonic rock, primarily quartz, feldspar, and mica/amphibole
Quartz Pebble
Silicon Dioxide (SiO2)
Granite
Plutonic felsic rock (Quartz, Feldspar, Mica)
Likely weathered igneous rock fragments
Indeterminate; possibly basaltic or granitic rock with quartz, feldspar, and dark mafic minerals
Granite
Phaneritic Felsic Igneous Rock
Gneiss
High-grade regional metamorphic rock (Foliated)
Dalmation Stone (frequently called Dalmatian Jasper)
Peralkaline Quartz-Feldspar Rock
Schist
Schist (Foliated Metamorphic Rock)
Clear Quartz
Silicon dioxide (SiO2)
Quartz Crystal Point
Silicon Dioxide (SiO2)
Magnetite
Magnetite (Fe3O4)
Quartz (Milky Quartz vein fragment)
Silicon Dioxide (SiO2)
Epidote-bearing Rock
Epidote / Silicate mineral aggregate
Amygdaloidal Basalt
Extrusive Igneous Rock with Amygdules
Red Granite
Intrusive Igneous Rock (Felsic)
Granite
Felsic intrusive igneous rock
Amygdaloidal Basalt
Amygdaloidal Basalt (Mafic Volcanic Rock)
Dalmation Stone
Peralkaline Rock (SiO2 with Arfvedsonite)
Granite
Felsic intrusive igneous rock
Granite
Granite (Phaneritic Quartz-Feldspar Plutonic Rock)
Quartz
Silicon Dioxide (SiO2)
Serpentinite
Serpentinite (Hydrated magnesium iron phyllosilicate)
Dalmatian Stone
Dalmatian Jasper (a misnomer for an Aplite with Arfvedsonite spots)
Granite Pebble
Intrusive Igneous Rock (Quartz, Feldspar, Mica)
Granite
Phaneritic Plutonic Felsic Rock
Gneiss
Metamorphic Gneiss
Granite
Intrusive Igneous Rock (Felsic)
Granite Pebble
Granite (Plutonic Igneous Rock)
Granite
Phaneritic Felsic Igneous Rock
Dragonstone (Brecciated Basalt/Diabase with Epidote and Quartz)
Brecciated mafic igneous rock
Granite Cobble
Phaneritic Felsic Igneous Rock
Granite
Phaneritic Felsic Igneous Rock
Granite (Fine-grained)
Phaneritic Felsic Igneous Rock
Sodalite
Sodalite (Na8Al6Si6O24Cl2)
Feldspar-rich igneous rock, likely granite or gneiss fragment
Granite-like quartz–feldspar rock; exact identification is uncertain from the blurred image
Basalt
Aphanitic Mafic Igneous Rock
Quartz pebble (Agate / Chalcedony)
Silicon Dioxide (SiO2)