Sandstone
Arenite (SiO2 based)
sedimentary
Category
Metamorphic (Likely Gneiss Or Schist Based On Texture)
Browse metamorphic (likely gneiss or schist based on texture) specimens identified by the Rock Identifier community.
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Sandstone (Quartzose)
Arenite (SiO2 based)
sedimentary
Garnet Schist
Garnetiferous Mica Schist
metamorphic
Quartzite (Yellow/Tan)
Metamorphic Rock composed of Quartz (SiO₂)
metamorphic
Quartz-Mica Schist (with Muscovite)
Metamorphic Rock (Quartz, Muscovite, Feldspar)
metamorphic
Likely weathered granite or granitic gneiss
Granite; quartz–feldspar–mica aggregate (possibly foliated gneiss)
igneous
Quartzite
Quartzite (SiO2 based)
metamorphic
Anthracite Coal
Anthracite (Carbon based)
metamorphic
Phyllite
Phyllite (Intermediate grade metamorphic rock)
metamorphic
Sandstone
Arenite (SiO2 based)
sedimentary
Aventurine (Green Quartz)
Silicon Dioxide (SiO2) with inclusions of Fuchsite (Mica)
mineral
Quartz Vein in Host Rock (Gneiss/Schist)
Silicon Dioxide (SiO2) within a metamorphic matrix
metamorphic
Sandstone (with banding/weathering)
Clastic Sedimentary Rock (primarily SiO2)
sedimentary
Fossilized Shark Tooth (Fragment)
Elasmobranchii (fossilized tooth)
fossil
Fuchsite
K(Al,Cr)2(AlSi3O10)(OH)2 (Chromium-rich Muscovite)
mineral
Potassium Feldspar (Orthoclase / Microcline)
KAlSi3O8
mineral
Clear Quartz (or Rock Crystal)
Quartz (SiO₂)
Mineral
Sandstone
Arenite (SiO2 based)
sedimentary
Sandstone (Pebble)
Arenite (SiO2 based)
sedimentary
Diorite (or Gabbro/Gneiss stream pebble)
Diorite
igneous
Granite Gneiss
Felsic Gneiss (composed of Quartz, Feldspar, and Biotite)
metamorphic
Garnet Gneiss
Gneiss containing almandine-pyrope garnet
metamorphic
Sandstone
Arenite (SiO2 based)
sedimentary
Fuchsite
Chromium-rich Muscovite Mica
mineral
Mixed Gemstone and Mineral Collection
Silicon Dioxide (SiO2) based minerals and others
mineral
Sandstone
Arenite (SiO2-rich)
sedimentary
Quartz
Quartz (SiO2 - Silicon Dioxide)
Mineral
Schist
Mica Schist
metamorphic
Schist
Mica Schist
metamorphic
Note: This is a Man-Made Object (Costume/Prop Patch)
Synthetic fiber and pigments (Cellulose/Plastic-based composite)
Non-geological
Banded Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Weathered granite-like rock
Granite, likely biotite-bearing; exact identification is uncertain from the image
igneous
Weathered granite or granitic gneiss
Quartz–feldspar–mica granitic rock; possibly gneiss if foliation is present
igneous
Possible graphite-bearing schist
Graphitic mica schist; predominantly quartz, mica, and graphite
metamorphic
Sandstone
Arenite (SiO2 based)
sedimentary
Sandstone
Arenite (SiO2 based)
sedimentary
Sandstone
Arenite (SiO2 based)
sedimentary
Likely blue glass or synthetic gemstone jewelry
Uncertain; possibly synthetic spinel, cubic zirconia, or blue glass
gemstone
Weathered granite or granitic gneiss
Granite; mainly quartz (SiO₂), feldspar, and mica, possibly with metamorphic foliation
igneous
Garnet in Schist (Polished Tower)
Almandine Garnet (Fe3Al2(SiO4)3) in Mica Schist
metamorphic
Garnet Schist
Garnetiferous Micaceous Schist
metamorphic
Unidentified coarse-grained rock fragments
Likely granite or granitic rock; exact identification is uncertain from the photograph
igneous