Gneiss
Gneiss (High-grade metamorphic rock)
Category
Browse igneous, sedimentary, and metamorphic mix specimens identified by the Rock Identifier community.
Gneiss
Gneiss (High-grade metamorphic rock)
Banded Gneiss
Gneiss (Metamorphic high-grade, predominantly SiO2, Al2O3, K2O, Na2O)
Gneiss (specifically Micaceous Gneiss)
Gneiss (High-grade Regional Metamorphic Rock)
Banded Gneiss
Gneiss (Metamorphic Rock)
Gneiss (foliated metamorphic rock)
Gneiss
Blue Apatite
Apatite-(CaF), Ca5(PO4)3F (Calcium Fluorophosphate)
Clear Quartz
Silicon Dioxide (SiO2)
Pyrite (on host rock)
Iron Sulfide (FeS2)
Pyrite
Iron Disulfide (FeS2)
Quartz
Silicon dioxide (SiO2)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Pyrite
Iron Sulfide (FeS2)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Milky Quartz with Iron Staining
Quartz (Silicon Dioxide, SiO2)
Pyrite
Iron Sulfide (FeS2)
Quartz
Silicon Dioxide (SiO2)
Clear Quartz Crystal
Silicon Dioxide (SiO2)
Garnet (Almandine/Pyrope variety)
Silicate mineral group; typically Fe3Al2(SiO4)3 (Almandine) or Mg3Al2(SiO4)3 (Pyrope)
Pyrite
Iron Sulfide (FeS2)
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Pyrite
Iron Disulfide (FeS2)
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Quartz (Milky/Smoky variety)
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Hematite
Iron(III) oxide (Fe2O3)
Quartz (Grain/Fragment)
Silicon Dioxide (SiO2)
Quartz (Milky/Common)
Quartz (Silicon Dioxide, SiO2)
Quartz (specifically Milky or Clear Quartz)
Silicon Dioxide (SiO2)
Pyrite
Iron Sulfide (FeS2)
Pyrite
Iron Sulfide (FeS2)
Clear/White Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz (Smoky/Milky variety)
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Gneiss (Metamorphic Rock)
Gneiss
Almandine Garnet
Almandine [Fe3Al2(SiO4)3]
Black Sand (Magnetite Sand)
Magnetite-rich Placers (Fe3O4)
Schist
Mica Schist