Quartz (Milky or White Quartz)
Silicon Dioxide (SiO2)
Category
Browse igneous, metamorphic, sedimentary specimens identified by the Rock Identifier community.
Quartz (Milky or White Quartz)
Silicon Dioxide (SiO2)
Banded Gneiss
Gneiss (Metamorphic rock)
Gneiss
Foliated Metamorphic Gneiss
Quartz Vein in Schist
Quartz-rich Micaceous Schist (SiO2 + phyllosilicates)
Gneiss (Banded Gneiss)
Gneiss
Pyrite
Pyrite (FeS₂)
Gneiss
Gneiss
Pyrite
Iron Disulfide (FeS2)
Schist
Mica Schist
Gneiss
Gneiss
Feldspathic Gneiss
High-grade Metamorphic Rock (Gneiss)
Gneiss
Gneiss
Gneiss
Gneiss (Metamorphic rock dominated by Quartz, Feldspar, and various dark minerals)
Gneiss
High-grade metamorphic rock (Gneiss)
Gneiss
Gneiss
Gneiss
Gneiss
Greenstone / Graywacke
Metagraywacke or Chlorite Schist
Gneiss (foliated metamorphic rock)
Gneiss
Gneiss
Gneiss
Gneiss
Gneiss
Banded Gneiss
Gneiss (High-grade Metamorphic Rock)
Gneiss
Gneiss
Banded Gneiss
Gneiss (High-grade regional metamorphic rock)
Banded Gneiss
Gneiss
Mica Schist
Mica Schist (primarily Muscovite or Biotite)
Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
Gneiss (specifically a weathered Amphibolite or Garnet Gneiss)
Gneiss (complex silicate composition)
Gneiss (Metamorphic Rock)
Gneiss
Garnet-Bearing Gneiss
Almandine-Garnet Gneiss
Gneiss (specifically Amphibolite Gneiss)
Gneiss
Epidote with Magnetite/Hematite inclusions
Epidote (Ca2(Al2,Fe3+)(SiO4)3(OH)) with Iron Oxides
Magnetite
Magnetite (Fe3O4)
Hematite
Iron(III) oxide (Fe2O3)
Gneiss
Gneiss (foliated metamorphic rock)
River Rock (Gneiss/Schist mix)
Foliated Metamorphic Rock (Gneiss)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Garnet (Almandine)
Almandine (Fe3Al2(SiO4)3)
Garnet-bearing gneiss
Quartz–feldspar–mica gneiss with iron-rich garnet (commonly almandine)
Gneiss
Gneiss
Gneiss
Orthogneiss / Paragneiss
Gneiss Pebble
Gneiss
Gneissic River Cobble
Gneiss