Pyritic Gneiss
Metamorphic Gneiss with Pyrite inclusions
Category
Browse mineral with metamorphic or igneous host specimens identified by the Rock Identifier community.
Pyritic Gneiss
Metamorphic Gneiss with Pyrite inclusions
Schorl (Black Tourmaline)
Sodium Iron Aluminum Borosilicate Hydroxide; NaFe2+3Al6Si6O18(BO3)3(OH)3OH
Pyrite on Limestone
Iron Disulfide (FeS2) in Calcium Carbonate (CaCO3) matrix
Greenschist
Greenschist (composed of Chlorite, Actinolite, and Epidote)
Drupa Quartz (Sparkly Drusy Quartz on Matrix)
Crystalline Silicon Dioxide (SiO2) on host rock
Quartz
Silicon Dioxide (SiO2)
Chevron Amethyst
Silicon Dioxide (SiO2) with iron impurities
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Pearl
Aragonite and Calcite (CaCO3) with Conchiolin
Quartz (Milky/Common)
Silicon Dioxide (SiO2)
Pink Chalcedony (Agate/Jasper blend)
Silicon Dioxide (SiO₂)
Green Aventurine
SiO2 (Silicon Dioxide with inclusions of Fuchsite mica)
Granite Gneiss
Gneiss (High-grade Metamorphic Rock)
Orthoclase Feldspar
KAlSi3O8 (Potassium Aluminum Silicate)
Magnetite
Magnetite (Fe3O4)
Corundum (Ruby variety)
Aluminium oxide (Al2O3)
Quartz (Smoky/Clear variety)
Silicon Dioxide (SiO2)
Quartz
Silicon dioxide (SiO2)
Sand (Construction Grade)
Unconsolidated siliciclastic sediment (primarily SiO2)
Turquoise and Hematite
Turquoise (CuAl6(PO4)4(OH)8·4H2O) and Hematite (Fe2O3)
Turquoise
Hydrated copper and aluminum phosphate (CuAl6(PO4)4(OH)8·4H2O)
Turquoise
Hydrated phosphate of copper and aluminium: CuAl6(PO4)4(OH)8·4H2O
Quartz Geode
Silicon Dioxide (SiO2) within a geode
Banded Gneiss
Gneiss (High-grade regional metamorphic rock)
Sapphire
Corundum (Al2O3)
Turquoise
Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)
Gneiss
Metamorphic Gneiss (High-grade regional metamorphism)
Milky Quartz with Mineral Inclusions
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Gneiss
Foliated Metamorphic Gneiss
Hematite
Ferric Oxide (Fe2O3)
Pyrite
Iron Sulfide (FeS2)
Pyrite
Iron Disulfide (FeS2)
Potassium Feldspar (Orthoclase)
KAlSi3O8 (Potassium Aluminum Silicate)
Pyrite (Cube variety)
Iron Sulfide (FeS2)
Calcite
Calcium Carbonate (CaCO3)
Garnet (Almandine)
Almandine (Fe3Al2(SiO4)3)
Hematite
Iron(III) oxide (Fe2O3)
Quartz
Silicon Dioxide (SiO2)
Quartz (Milky or White Quartz)
Silicon Dioxide (SiO2)
Quartz (Small Fragment)
Silicon Dioxide (SiO2)
Peacock Ore
Bornite (Cu5FeS4)