Gneiss
Gneiss (High-grade metamorphic rock)
Category
Browse igneous, sedimentary, and metamorphic specimens identified by the Rock Identifier community.
Gneiss
Gneiss (High-grade metamorphic rock)
Gneiss (specifically Banded Gneiss)
Gneiss
Granite Gneiss
Felsic Gneiss
Gneiss
Gneiss (High-grade metamorphic rock)
Gneiss
Gneiss
Gneiss
Gneiss
Banded Gneiss
Gneiss (High-grade metamorphic rock)
Gneiss (Banded Gneiss)
Gneiss
Gneiss
Gneiss
Gneiss
Gneiss
Quartz Pebble
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz (Iron-stained or Chalcedony varieties)
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz (specifically Milky/White Quartz)
Silicon Dioxide (SiO2)
Feldspar
KAlSi3O8 - NaAlSi3O8 - CaAl2Si2O8
Clear Quartz Crystal
Quartz (Silicon Dioxide, SiO2)
Quartz (Milky/Rose variety)
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
Pyrite
Iron Sulfide (FeS2)
Pyrite
Iron Sulfide (FeS2)
Quartz (Milky/Smoky Crystal fragment)
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Clear Quartz
Crystalline Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Hematite
Iron(III) oxide (Fe2O3)
Quartz (Tumbled/Water-worn)
Silicon Dioxide (SiO2)
Milky Quartz with Iron Staining
Quartz (Silicon Dioxide, SiO2)
Quartz (Rosy/Clear variety)
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Pyrite
Iron Disulfide (FeS2)
Clear Quartz
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Amphibolite (specifically Hornblende Schist/Gneiss)
Amphibole-rich Metamorphic Rock
Quartz (likely Jasper or Chert variety)
Quartz (SiO₂)
Bornite
Bornite (Cu5FeS4)
Hematite
Iron(III) oxide (Fe2O3)