Banded Gneiss
Banded Orthogneiss or Paragneiss (Quartz-Feldspathic Gneiss)
Category
Browse sedimentary or metamorphic derived specimens identified by the Rock Identifier community.
Banded Gneiss
Banded Orthogneiss or Paragneiss (Quartz-Feldspathic Gneiss)
General Gravel (River Rock/River Stones)
Mixed Lithic Sediments (Conglomerate Clasts)
Gneiss
Gneiss (High-grade metamorphic rock)
Magnetite
Magnetite (Fe3O4)
Hematite
Iron(III) oxide (Fe2O3)
Quartz Vein in Host Rock (Breccia/Rhyolite)
Silicon Dioxide (SiO2) with matrix
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Amphibolite (specifically Hornblende Schist/Gneiss)
Amphibole-rich Metamorphic Rock
Red Jasper
Jasper (Silicon Dioxide, SiO2 with Fe2O3 inclusions)
Quartz Druzy Geode
Silicon Dioxide (SiO2)
Quartz in Limonite-rich Matrix
Silicon Dioxide (SiO2) with Goethite/Limonite FeO(OH)·nH2O
Tiger Iron
Tiger Iron (composite of Tiger's Eye, Red Jasper, and Hematite)
Gneiss
Gneiss
Gneiss
Gneiss
Gneiss
Gneiss (High-grade metamorphic rock)
Gneiss (specifically a Hornblende Gneiss or Micaceous Gneiss)
Gneiss (metamorphic rock composed primarily of quartz, feldspar, and mafic minerals)
Gneiss (likely Granitic Gneiss)
Gneiss
Gneiss
Gneiss
Gneiss (with Quartzite and Mica)
Gneiss
Granitic Gneiss
Gneiss (Metamorphic rock predominantly containing quartz, K-feldspar, and plagioclase)
Almandine Garnet in Schist Matrix
Almandine - Fe3Al2(SiO4)3
Gneiss (Pebble)
Gneiss
Marble
Recrystallized Calcite (CaCO3)
Gneiss (with iron staining)
Gneiss
Pink Granite Gneiss
Gneiss (High-grade metamorphic rock)
Gneiss
Gneiss
Gneiss
Gneiss
Gneiss
High-grade regional metamorphic rock (Foliated)
Banded Gneiss
Gneiss (High-grade Metamorphic Rock)
Gneiss
Gneiss (High-grade Regional Metamorphism)
Banded Gneiss
Gneiss (high-grade metamorphic silicate rock)
Quartzite
Quartzite (consisting primarily of SiO2)
Schist
Mica Schist
Folded Schist / Gneiss (Metamorphic Rock)
Regional Metaphoric Folded Outcrop (predominantly Schist/Gneiss)
Red Jasper
Jasper (a variety of Quartz, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Pyrite in Matrix (Quartz/Schist)
Iron Sulfide (FeS2)
Pyrite
Iron Sulfide (FeS2)
Quartz with Mica/Host Rock
Silicon Dioxide (SiO2) with Phyllosilicates
Garnet Schist
Almandine-bearing Mica Schist
Gneiss
Gneiss
Gneiss
Gneiss