Gneiss
Gneiss (High-grade Metamorphic Rock)
metamorphic
Category
Metamorphic Rock (Composed Of Multiple Minerals)
Browse metamorphic rock (composed of multiple minerals) specimens identified by the Rock Identifier community.
Gneiss
Gneiss (High-grade Metamorphic Rock)
metamorphic
Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic
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
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Aventurine (likely Green Aventurine)
Silicon Dioxide (SiO2) with mineral inclusions
Mineral/Mineraloid within a rock matrix
Sandstone (Pebble)
Arenite (composed primarily of SiO2)
sedimentary
Granite
Phaneritic Plutonic Igneous Rock (composed of Quartz, Feldspar, and Mica)
igneous
Basalt
Basalt (Volcanic Mafic Rock)
igneous
Gneiss
Metamorphic rock of high-grade regional metamorphism
metamorphic
Limonite (Ironstone)
Limonite (Hydrated iron(III) oxide-hydroxide, FeO(OH)·nH2O)
mineral
Biotite Schist
Biotite Schist
Metamorphic
Sandstone (likely Quartzose Sandstone)
Arenite (composed primarily of SiO2)
sedimentary
Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic
Sandstone
Arenite (primarily SiO2)
sedimentary
Sandstone (Ferruginous)
Arenite (with Iron Oxide cement)
sedimentary
Banded Gneiss
Gneiss (High-grade Metamorphic Rock)
metamorphic
Sandstone (with Feldspathic/Arkose qualities)
Arenite (primarily SiO2 with KAlSi3O8 components)
sedimentary
Dalmatian Jasper (or Dalmatian Stone)
Dalmatian Stone (A peralkaline felsite composed of feldspar, quartz, and sodic amphibole)
igneous
Biotite Schist with Garnet
Garnet-Biotite Schist
metamorphic
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
mineral
Shale
Shale
sedimentary
Granite
Phaneritic Plutonic Felsic Rock
igneous
Quartz (specifically Clear Quartz or Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Peridot (Olivine)
Magnesium Iron Silicate (Mg, Fe)2SiO4
mineral
Granite (Weathered/Oxidized)
Phaneritic Felsic Igneous Rock (composed of Quartz, Orthoclase Feldspar, and Mica)
igneous
Diamond (Cluster Setting)
Carbon (C) - Diamond
mineral
Schist with Quartz/Mica
Mica Schist (primarily Muscovite and Quartz)
Metamorphic
Greenstone
Greenschist / Greenstone (containing Chlorite, Epidote, Actinolite)
metamorphic
Asphalt (Bituminous Pavement)
Bituminous mix (Aggregates with Bitumen binder)
sedimentary
Sandstone (with garnet granules)
Clastic sedimentary rock (primarily SiO2 with Fe3Al2(SiO4)3 inclusions)
sedimentary
Gneiss
Gneiss
metamorphic
Slate
Slate (Regional metamorphic rock composed primarily of quartz, illite, and chlorite)
metamorphic
Sandstone
Arenite (composed primarily of SiO2)
sedimentary
Granite
Granite (composed primarily of Quartz SiO2, Feldspar (KAlSi3O8), and Mica)
igneous
Mica Schist
Mica Schist (Schistose metamorphic rock rich in Muscovite/Biotite)
metamorphic
Granite
Granite (Phaneritic Quartz-Feldspar Igneous Rock)
igneous
Laterite (iron-rich nodule, possibly Bauxite as a subtype)
Laterite (composed of various minerals including goethite, hematite, gibbsite, etc.)
Sedimentary
Garnet-Bearing Gneiss
Almandine-Garnet Gneiss
metamorphic
Schist (Micaceous Schist)
Schist (comprising Muscovite/Biotite mica, Quartz, and Feldspar)
metamorphic
Barite Rose (Desert Rose)
Barium Sulfate (BaSO4)
mineral