Granite
Granite (Phaneritic Acidic Igneous Rock)
igneous
Category
Metamorphic Rock (Primarily Composed Of Minerals)
Browse metamorphic rock (primarily composed of minerals) specimens identified by the Rock Identifier community.
Learn about Metamorphic Rock (Primarily Composed Of Minerals) in the encyclopedia
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Sandstone
Arenite (composed primarily of SiO2)
sedimentary
Quartzite (River Cobble)
Metamorphic Rock (composed predominantly of SiO2)
metamorphic
Coquina
Bioclastic Limestone (CaCO3)
sedimentary
Sandstone
Arenite (composed primarily of SiO2)
sedimentary
Sandstone (Quartz-rich)
Arenite
sedimentary
Sandstone
Arenite (primarily Quartz-rich sedimentary rock)
sedimentary
Granite Pebble
Granite (composed primarily of Quartz, Feldspar, and Mica/Amphibole)
igneous
Sandstone
Arenite (primarily SiO2)
sedimentary
Sandstone (Ferruginous)
Arenite (Fe2O3 stained)
sedimentary
Gneiss (Granitic Gneiss)
Gneiss
metamorphic
Assorted Decorative Tumbled Stones (Quartz, Sodalite, Aventurine, Calcite)
Mixed Silicates and Carbonates (SiO2, Na8(Al6Si6O24)Cl2, CaCO3)
mineral
Shale or Argillite
Shale (fine-grained clastic sedimentary rock) or Argillite (low-grade metamorphic rock derived from shale)
Sedimentary or Metamorphic (low grade)
Aquamarine
Beryl (Be3Al2Si6O18)
gemstone
Sandstone
Quartz Arenite (a type of sandstone composed of more than 90% quartz)
Sedimentary Rock
Red Sandstone
Arenite (high iron oxide content)
sedimentary
Sandstone
Arenite (Sedimentary rock composed of sand-sized minerals or rock grains)
sedimentary
Sandstone
Arenite (primarily Quartz Sandstone with Iron Oxide)
sedimentary
Banded Gneiss
Gneiss (Metamorphic Rock)
metamorphic
Pebble
Clast (specifically a granule or small pebble)
Sedimentary
Bauxite
Bauxite (Al(OH)3 mixed with Fe2O3 and clay minerals)
sedimentary
Granite
Granite (Phaneritic intrusive igneous rock)
igneous
Red Quartzite (Strawberry Quartz)
Quartzite (SiO2 with iron oxide inclusions)
metamorphic
Quartzite
Quartzite (composed primarily of SiO2)
metamorphic
Yellow Agate
Silicon Dioxide (SiO2)
mineral
Mica Schist
Mica Schist (primarily composed of Muscovite, Biotite, and Quartz)
metamorphic
Sandstone (Quartz-rich)
Arenite (Quartz Arenite)
sedimentary
Sandstone
Arenite (composed primarily of SiO2)
sedimentary
Dalmatian Stone (commonly Dyed)
Dalmatian Jasper (Peralkaline igneous rock)
igneous
Siltstone
Siltstone (primarily composed of SiO2)
sedimentary
Granite
Phaneritic Igneous Rock (composed primarily of Quartz, Feldspar, and Mica)
igneous
Sandstone
Arenite (composed primarily of SiO2)
sedimentary
Quartzite
Quartzite
metamorphic
Sandstone
Arenite (primarily SiO2)
sedimentary
Sandstone
Arenite (composed primarily of SiO2)
sedimentary
Mica Schist with Quartz
Muscovite/Biotite Schist
metamorphic
Schist
Mica Schist
metamorphic
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Greenschist
Greenschist (Chlorite-actinolite schist)
metamorphic
Moonstone
Orthoclase Feldspar (KAlSi3O8)
mineral
Quartz vein in Schist
Crystalline Silicon Dioxide (SiO2) in Metamorphic Host
metamorphic