Granite
Felsic intrusive igneous rock
Category
Browse mineral in igneous rock specimens identified by the Rock Identifier community.
Granite
Felsic intrusive igneous rock
Black Tourmaline
Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
Granite
Phaneritic Plutonic Igneous Rock (primarily composed of quartz, alkali feldspar, and plagioclase)
Granite Pebble
Granite (Phaneritic Igneous Rock)
Vesicular Basalt with Amygdaloidal Infill
Basalt (Mafic Extrusive Igneous Rock)
Assorted Decorative Tumbled Stones (Quartz, Sodalite, Aventurine, Calcite)
Mixed Silicates and Carbonates (SiO2, Na8(Al6Si6O24)Cl2, CaCO3)
Granite
Phaneritic Igneous Rock (Granite)
Granite (Weathered)
Phaneritic Felsic Igneous Rock
Granite
Phaneritic Igneous Rock (Granite)
Ptygmatic Migmatite
Migmatite (consisting of Neosome and Paleosome fractions)
Granite
Felsic intrusive igneous rock
Granite
Phaneritic Igneous Rock (primarily Quartz, Feldspar, and Mica)
Basalt
Extrusive Igneous Rock
Basalt
Extrusive igneous rock
Magnetite Ore
Magnetite (Fe3O4)
Dalmation Jasper
Perthitic Feldspar with Arfvedsonite inclusions
Basalt Outcropping
Aphanitic Mafic Igneous Rock
Granite Pebble
Felsic intrusive igneous rock (composition: Quartz, Feldspar, Mica)
Vesicular Basalt with Quartz/Chalcedony
Vesicular Basalt (primarily Plagioclase, Pyroxene, and Olivine with SiO2 infill)
Magnetite
Magnetite (Fe3O4)
Dalmatian Jasper
Dalmatian Stone (comprised of Feldspar, Quartz, and Arfvedsonite)
Smoky Quartz
Silicon Dioxide (SiO2)
Pink Granite
Plutonic Igneous Rock (Granite)
Greenstone
Metabasalt / Metamorphosed Igneous Rock
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
Garnet (likely Almandine or Pyrope)
Garnet (Group Name), Fe3Al2(SiO4)3 or Mg3Al2(SiO4)3
Granite
Granite (Phaneritic Igneous Rock)
Smoky Quartz
Smoky Quartz (SiO2: Silicon Dioxide)
Granite
Felsic intrusive igneous rock
Granite
Phaneritic Felsic Igneous Rock
Mixed rock and mineral specimen collection
Mostly undetermined from the photograph; apparent quartz-rich rocks, sandstone, granite/gneiss, and possibly iron-oxide-bearing specimens
Mixed Rock and Mineral Collection
Various geological specimens
Granite
Intrusive Felsic Igneous Rock
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
Basalt with Amygdales
Amygdaloidal Basalt
Milky Quartz
Silicon Dioxide (SiO2)
Leopard Skin Jasper
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Milky Quartz
Silicon Dioxide (SiO2)
Basalt with minor mineral crusting
Sideromelane / Extrusive Igneous Rock
Clear Quartz
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)