Banded Gneiss
Gneiss (Metamorphic high-grade rock)
Category
Browse metamorphic mineral specimens identified by the Rock Identifier community.
Banded Gneiss
Gneiss (Metamorphic high-grade rock)
Schist
Mica Schist
Green Quartzite (Aventurine-like)
Quartzite (primarily SiO2 with trace Fuchsite mica inclusions)
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
Milky Quartz Pebbles
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Quartz (Silicon Dioxide, SiO2)
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
Citrine Quartz
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Smoky Quartz (Rough Specimen)
Silicon Dioxide (SiO2)
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
Galena
Lead Sulfide (PbS)
Blue Sapphire
Corundum (Al2O3) with iron and titanium impurities
Moonstone
Orthoclase Feldspar ((K,Na)AlSi3O8) with Albite
Yellow Quartz (Citrine Quartz)
Silicon Dioxide (SiO2)
White Quartz
Silicon Dioxide (SiO2)
Grey Agate
Silicon Dioxide (SiO2) - Variety of Chalcedony
Citrine
Silicon Dioxide (SiO2)
Quartz (specifically Clear Quartz or Rock Crystal)
Silicon Dioxide (SiO2)
Sapphire
Corundum (Al2O3)
Quartz
Silicon Dioxide (SiO2)
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
Carnelian Agate
Silicon Dioxide (SiO2) with iron oxide inclusions
Smoky Quartz
Silicon Dioxide (SiO2)
Labradorite
Labradorite ((Ca, Na)(Al, Si)4O8)
Blue Sapphire (Synthetic or Man-made Glass Imitation)
Corundum (Al2O3) if natural; Lead-glass or Spinal if synthetic
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon dioxide with aluminum impurities (SiO2)
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Red Aventurine (Strawberry Quartz)
Silicon Dioxide (SiO2) with inclusions of Hematite or Goethite
Red Garnet (Almandine-Pyrope series)
Garnet Group, Almandine (Fe3Al2(SiO4)3) or Pyrope (Mg3Al2(SiO4)3)
Milky Quartz
Silicon Dioxide (SiO2)
Plagioclase Feldspar
Plagioclase Feldspar Series (NaAlSi3O8 - CaAl2Si2O8)
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
Banded Agate
Cryptocrystalline Quartz (SiO2)
Rose Quartz
Silicon Dioxide (SiO2) with traces of Titanium, Iron, or Manganese
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Quartz (Milky/Common Quartz)
Silicon Dioxide (SiO2)