Gneiss
Gneiss (Foliated Metamorphic Rock)
metamorphic
Category
Igneous, Sedimentary, Metamorphic
Browse igneous, sedimentary, metamorphic specimens identified by the Rock Identifier community.
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Green Aventurine
Silicon Dioxide (Quartz with Fuchsite inclusions), SiO2
metamorphic
Greenschist
Chlorite Schist
metamorphic
Sand Grain (Silica/Quartz Grain)
Silicon Dioxide (SiO2)
sedimentary
Dragon Blood Jasper
Epidote with Red Piedmontite (silicate)
sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Mica-rich Schist fragment
Mica Schist
metamorphic
Pyritic Gneiss
Metamorphic Gneiss with Pyrite inclusions
metamorphic
Garnet (Almandine)
Almandine (Fe3Al2(SiO4)3)
mineral
Garnet (Almandine)
Almandine (Fe3Al2(SiO4)3)
mineral
Banded Gneiss
Banded Gneiss (Metamorphic Rock)
metamorphic
Epidote (Unakite component) / Green Quartzite
Ca2(Al,Fe)3(SiO4)3(OH)
metamorphic
Greenschist
Greenschist facies metamorphic rock
metamorphic
Gneiss (or Granite Gneiss)
Metamorphic rock rich in quartz, feldspar, and biotite/amphibole
metamorphic
Gneiss (with Garnet)
Gneiss (Feldspar-Quartz-Biotite-Garnet Metamorphic Rock)
metamorphic
Gneiss
Metamorphic Gneiss (High-grade regional metamorphism)
metamorphic
Garnet Gneiss or Mica Schist with Garnet
Almandine Garnet-bearing Gneiss
metamorphic
Gneiss
High-grade regional metamorphic rock (Foliated Gneiss)
metamorphic
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Gneiss
Gneiss
metamorphic
Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic
Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic
Gneiss
Metamorphic Gneiss (High-grade regional metamorphism)
metamorphic
Granitic Gneiss
Gneiss (High-grade regional metamorphic rock)
metamorphic
River Rock (likely Gneiss or Quartzite)
Metamorphic rock specimen (potentially Foliated Gneiss)
metamorphic
River Pebble (Gneiss or Granite)
Metamorphic Rock (likely Gneiss or Granitic composition)
metamorphic
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Chert/Chalcedony variety)
Silicon Dioxide (SiO2)
mineral
Clear Quartz Crystal Cluster
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Green Calcite
Calcium Carbonate (CaCO3)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Magnetite Nodule
Magnetite (Fe3O4)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (SiO2)
mineral
Faceted Clear Quartz
Crystalline Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Milky/Clear Quartz)
Silicon Dioxide (SiO2)
mineral