Granite Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
Category
Browse metamorphic specimens identified by the Rock Identifier community.
Granite Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
Marble
Metamorphic rock primarily composed of Calcite (CaCO3)
Gneiss
Gneiss (High-grade regional metamorphic rock)
Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
Quartzite (River Pebble)
Metamorphic rock consisting primarily of Quartz (SiO2)
Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
Mica Schist
Foliated Metamorphic Rock (rich in Muscovite or Biotite)
Feldspar-rich Quartzite
Metamorphic Quartz-Feldspar Aggregate (SiO2 + KAlSi3O8)
Iron-stained Quartzite
Metamorphic Quartz (SiO2) with limonite/hematite staining
Gneiss with Quartz Veining
Gneiss (High-grade regional metamorphic rock)
Quartzite
Metamorphic rock primarily composed of Quartz (SiO2)
Quartzite with Iron Inclusions
Metamorphic Quartzite (SiO2 with Fe2O3 trace impurities)
Banded Gneiss
Gneiss (High-grade regional metamorphic rock)
Marble (Carrara style)
Recrystallized Calcite-rich Metamorphic Rock (CaCO3)
Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
Banded Gneiss
Gneiss (High-grade regional metamorphic rock)
Gneiss
High-grade regional metamorphic rock (Foliated)
Granite Gneiss
Gneiss (High-grade regional metamorphic rock)
Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
Quartzite
Metamorphic rock predominantly composed of Quartz (SiO2)
Gneiss (specifically Pink Gneiss)
Gneiss (high-grade regional metamorphic rock)
Lapis Lazuli
Lazurite-rich metamorphic rock (complex silicate)
Gneiss
Gneiss (High-grade regional metamorphic rock)
Granite Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
Banded Gneiss
Gneiss (high-grade metamorphic silicate rock)
Quartzite Pebble
Metamorphic rock predominantly composed of Quartz (SiO2)
Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
Anthracite Coal
Anthracite (Carbon-rich Sedimentary-to-Metamorphic Rock)
Quartzite
Metamorphic rock primarily composed of Quartz (SiO2)
Gneiss
Gneiss (High-grade regional metamorphic rock)
Gneiss (specifically a Banded Gneiss pebble)
Gneiss (High-grade Regional Metamorphic Rock)
Granite Gneiss
Gneiss (High-grade regional metamorphic rock)
Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
Banded Gneiss
Gneiss (quartz-feldspar-biotite metamorphic rock)
Gneiss (specifically Micaceous Gneiss)
Gneiss (High-grade Regional Metamorphic Rock)
Quartz Vein in Host Rock
Silicon Dioxide (SiO2) within a metamorphic matrix
Garnet
Garnet group species (likely Almandine, Fe3Al2(SiO4)3)
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
Seraphinite
Clinochlore (a variety of the chlorite group)
Marble
Recrystallized Calcite (CaCO3)
Marble
Recrystallized Calcite (CaCO3) Rock