Quartz
Silicon Dioxide (SiO2)
Category
Browse sedimentary and metamorphic minerals specimens identified by the Rock Identifier community.
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Orange Calcite
Calcite (CaCO3)
Gneiss (Metamorphic Cobble)
Gneiss
Gneiss
Gneiss (High-grade metamorphic rock)
Quartz-rich gneiss
Banded quartz–feldspar–mica gneiss; commonly containing biotite and muscovite
Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
Clear Quartz
Silicon Dioxide (SiO2)
Quartz (Smoky/Milky variety)
Silicon Dioxide (SiO2)
Pyrite
Iron Disulfide (FeS2)
Quartz (specifically Clear or Rose Quartz)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz (Common or Milky Quartz)
Silicon Dioxide (SiO2)
Quartz (Milky or Common Quartz)
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Magnetite
Magnetite (Fe3O4)
Gneiss
Gneiss (High-grade Metamorphic Rock)
Gneiss
Foliated Metamorphic Rock (Gneiss)
Gneiss (specifically a Granitic Gneiss)
Gneiss (typically composed of Quartz, Feldspar, and Mica/Amphiboles)
Orange Calcite
Calcium Carbonate (CaCO3)
Green Calcite
Calcium Carbonate (CaCO3)
Magnetite / Iron Ore
Magnetite (Fe3O4)
Magnetite
Magnetite (Fe3O4)
Quartz Pebble
Silicon Dioxide (SiO2)
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
Blue Calcite
Calcium Carbonate (CaCO3)
Yellow Calcite
Calcium Carbonate (CaCO3)
Quartz (Tumbled)
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Banded Gneiss
Gneiss (Metamorphic Rock)
Garnet in Quartz Matrix
Almandine Garnet (Fe3Al2(SiO4)3) in Quartz (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz (Smoky/Milky)
Silicon Dioxide (SiO2)
Potassium Feldspar
Orthoclase (KAlSi3O8)
Schist
Metamorphic Rock (Schist)