Quartz (Iron-stained or Ferruginous)
Silicon Dioxide (SiO2)
Category
Browse metamorphic (pseudo igneous) specimens identified by the Rock Identifier community.
Quartz (Iron-stained or Ferruginous)
Silicon Dioxide (SiO2)
Corundum (Sapphire/Ruby in Matrix)
Corundum (Al2O3)
Magnetite (Lodestone)
Magnetite (Fe3O4)
Muscovite
Muscovite (KAl2(AlSi3O10)(OH)2)
Magnetite
Magnetite (Fe3O4)
Potassium Feldspar (Orthoclase)
Orthoclase (KAlSi3O8)
Muscovite Mica
Muscovite: KAl2(AlSi3O10)(OH)2
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
Smoky Quartz
Silicon Dioxide (SiO2)
Sodalite
Sodalite Na8(Al6Si6O24)Cl2
Sodalite
Sodium Aluminum Silicate Chloride (Na8(Al6Si6O24)Cl2)
Citrine Quartz
Silicon Dioxide (SiO2) with iron impurities
Pyrite
Iron Sulfide (FeS2)
Smoky Quartz
Silicon Dioxide (SiO2)
Chalcopyrite
Chalcopyrite (CuFeS2)
Hypersthene
Enstatite (Hypersthene variety), (Mg,Fe)SiO3
Pyrite in Quartzite/Graphite Matrix
Iron Sulfide (FeS2)
Muscovite Mica
Muscovite (KAl2(AlSi3O10)(F,OH)2)
Green Calcite
Calcium Carbonate (CaCO3)
Clear Quartz
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Milky Quartz (Ferruginous variety)
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Peach Moonstone (Orange/Peach Feldspar)
Potassium aluminum silicate (KAlSi3O8)
Smoky Quartz
Silicon Dioxide (SiO₂)
Quartz
Silicon Dioxide (SiO2)
Labradorite (Dark or Black variety)
Labradorite (member of Plagioclase Feldspar group), (Na,Ca)(Si,Al)4O8
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Raw Corundum (Sapphire/Ruby variant)
Aluminum oxide (Al2O3)
Tourmaline (Multi-colored)
Complex Borosilicate (Na,Ca)(Li,Mg,Al,Fe)3Al6(BO3)3Si6O18(OH)4
Quartz
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Pyrite
Iron Sulfide (FeS2)
Moonstone (Feldspar)
Orthoclase (KAlSi3O8) or Albite (NaAlSi3O8)
Quartz
Silicon Dioxide (SiO2)
Black Sand (Magnetite Sand)
Magnetite (Fe3O4)
Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite
Smoky Quartz
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)