Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic
Category
Metamorphic Rock (Primarily Composed Of Minerals)
Browse metamorphic rock (primarily composed of minerals) specimens identified by the Rock Identifier community.
Banded Gneiss (River Rock/Pebble)
Gneiss (specifically a banded variety often found as a river rock)
Metamorphic Rock
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Quartz Vein in Sedimentary Matrix
Silicon Dioxide (SiO2) with host rock
mineral
Soapstone (Talc-Schist)
Steatite (composed primarily of Talc: Mg3Si4O10(OH)2)
metamorphic
Sandstone (Quartzite-rich Cobble)
Clastic sedimentary rock (primarily SiO2)
sedimentary
Granite
Phaneritic Plutonic Igneous Rock (composed of Quartz, Feldspar, and Mica)
igneous
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2 with iron oxide inclusions)
metamorphic
Gneiss
Metamorphic rock of high-grade regional metamorphism
metamorphic
Biotite Schist
Biotite Schist
Metamorphic
Red Garnet
Garnet Group (e.g., Pyrope, Almandine, Spessartine, Grossular, Andradite, Uvarovite)
Mineral
Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic
Dyed Quartzite
Metamorphosed Quartz (SiO2) with synthetic pigment
metamorphic
Oolitic Limestone (Egg Stone)
Oolite (Chemical sedimentary rock, primarily CaCO3)
sedimentary
Green Slate (Greenstone)
Metamorphic shale (varied composition)
metamorphic
Sandstone (likely Quartzose Sandstone)
Clastic Sedimentary Rock (primarily SiO2)
sedimentary
Banded Sandstone (Differential Weathering)
Clastic Sedimentary Rock (primarily SiO2)
sedimentary
Sandstone
Sandstone (Sedimentary rock composed of silicate grains)
sedimentary
Banded Gneiss
Gneiss (High-grade Metamorphic Rock)
metamorphic
Oolitic Chert
Silicon Dioxide (SiO2) with oolitic texture
sedimentary
Shale
Shale
sedimentary
Quartz (specifically Clear Quartz or Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Desert Rose (Baryte or Selenite variant)
Barium Sulfate (BaSO4) or Gypsum (CaSO4·2H2O) with Sand inclusions
mineral
Arsenopyrite with Schist Matrix
Arsenopyrite (FeAsS)
mineral
Sandstone (Banded)
Clastic Sedimentary Rock (primarily SiO2)
sedimentary
Pink Feldspar
Orthoclase Feldspar (KAlSi3O8)
mineral
Gneiss
Gneiss
metamorphic
Dalmatian Stone (Dalmatian Jasper)
Dalmatian Stone (A variety of Perthite / Aplite)
Igneous
Schist (Garnet-Mica Schist)
Garnetiferous Mica Schist (primarily Muscovite/Biotite and Almandine Garnet)
metamorphic
Brick
Fired clay or Ceramic material (no specific mineralogical scientific name as it's a composite)
Man-made material (constructed)
Mica Schist
Schist (primarily Muscovite and Biotite mica)
metamorphic
Laterite (iron-rich nodule, possibly Bauxite as a subtype)
Laterite (composed of various minerals including goethite, hematite, gibbsite, etc.)
Sedimentary
Greisen (Quartz-Muscovite-Turretine Rock)
Greisen
Metamorphic Rock
Garnet-Bearing Gneiss
Almandine-Garnet Gneiss
metamorphic
Banded Agate
Chalcedony / Silicon Dioxide (SiO2)
mineral
Granite
Granite (a plutonic igneous rock)
Igneous
Serpentinite
Serpentinite
metamorphic
Gneiss
Gneiss (High-grade regional metamorphic rock)
metamorphic
Granite / Gneiss Complex
Felsic Plutonic Rock (Granite) or High-grade Metamorphic Rock (Gneiss)
igneous/metamorphic
Green Aventurine
Aventurine Quartz (SiO2 + Fuchsite mica)
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral