Gneiss
Gneiss
metamorphic
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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Gneiss (Cobble)
Gneiss
metamorphic
Gneiss
Gneiss
metamorphic
Gneiss
Gneiss
metamorphic
Gneiss (specifically Banded Gneiss)
Gneiss
metamorphic
Gneiss (Granitic Gneiss)
Gneiss
metamorphic
Gneiss (Banded Gneiss)
Gneiss
metamorphic
Sandstone
Arenite (SiO2 dominant)
sedimentary
Phyllite with Quartz Vein
Metamorphic Phyllite
metamorphic
Sandstone
Arenite (SiO2 based)
sedimentary
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Rounded granite pebble
Granite; chiefly quartz, feldspar, and mica
igneous
Quartzite
Quartzite (SiO2)
metamorphic
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Banded Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Rounded granitic gneiss or granite cobble
Quartz–feldspar–mica granitoid; possibly weathered gneiss
igneous
Gneiss (Metamorphic Rock)
Gneiss (variable mineral formula primarily containing Quartz, Feldspar, and Mica)
metamorphic
Rounded granite pebble
Granite, chiefly quartz, feldspar, and mica; approximate composition SiO₂-rich felsic rock
igneous
Garnet Schist
Almandine-Garnet Schist
metamorphic
Sandstone
Arenite (SiO2 based)
sedimentary
Gneiss with Quartz Veining
Gneiss (High-grade metamorphic rock)
metamorphic
Schist (specifically Chlorite/Greenschist)
Chlorite Schist
metamorphic
Schist
Mica Schist
metamorphic
Granitic Gneiss
Felsic Polycrystalline Gneiss
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Gneiss
Gneiss (High-grade Metamorphic Rock)
metamorphic
Gneiss
Gneiss (High-grade Metamorphic Rock)
metamorphic
Gneiss
Gneiss (High-grade Metamorphic Rock)
metamorphic
Gneiss
Gneiss (High-grade Metamorphic Rock)
metamorphic
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Muscovite Mica (in Quartz/Feldspar Matrix)
Muscovite - KAl2(AlSi3O10)(OH)2
mineral
Sandstone (likely Quartzose Sandstone)
Arenite (SiO2 based)
sedimentary
Ruby (Corundum)
Aluminum oxide (Al2O3) with Chromium traces
mineral
Garnet Schist
Almandine-bearing Mica Schist
metamorphic
Quartzite with Mica schist fragment
Quartzite (SiO2) with Muscovite/Biotite Schist
metamorphic
Gneiss (specifically a Granitic Gneiss)
Gneiss (Composition: Quartz, Feldspar, Mica)
metamorphic
Porphyritic granite (likely weathered granitic rock)
Granite; chiefly quartz, alkali feldspar, plagioclase, and biotite/hornblende
igneous
Green Aventurine
Quartzite with Fuchsite inclusions (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)
metamorphic
Schist
Mica Schist (primarily Muscovite or Biotite sheet silicates)
metamorphic