Quartz
Silicon Dioxide (SiO2)
Category
Browse mineral, often found in metamorphic rocks but also in sedimentary and igneous rocks specimens identified by the Rock Identifier community.
Quartz
Silicon Dioxide (SiO2)
Magnetite
Magnetite (Fe3O4)
Quartz
Silicon Dioxide (SiO2)
Quartz (Drusy/Crystalline)
Silicon Dioxide (SiO2)
Pyrite
Iron Sulfide (FeS2)
Quartz
Silicon Dioxide (SiO2)
Sodalite
Sodalite Na8(Al6Si6O24)Cl2
Granitic Gneiss
Gneiss (high-grade metamorphic rock primarily of quartz, feldspar, and mica)
Quartz
Silicon Dioxide (SiO2)
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Pyrite
Iron Sulfide (FeS2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Pyrite (Fools Gold)
Iron Sulfide (FeS2)
Mica (likely Muscovite)
Muscovite / KAl2(AlSi3O10)(OH)2
Garnet
Almandine-Pyrope group, X3Y2(SiO4)3
Sodalite
Na8(Al6Si6O24)Cl2
Quartz (Milky Quartz)
Quartz (SiO2 - Silicon Dioxide)
Pyrite
Pyrite (FeS2)
Orange Calcite
Calcite (Calcium Carbonate, CaCO3)
Almandine Garnet
Almandine (Fe3Al2Si3O12)
Nephrite Jade
Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2)
Clear Quartz
Silicon dioxide (SiO2)
Pyrite
Iron Disulfide (FeS2)
Citrine
Silicon Dioxide (SiO2)
Chalcopyrite
Chalcopyrite (CuFeS2)
Quartz
Silicon Dioxide (SiO2)
Orthoclase Feldspar
Potassium Aluminum Silicate (KAlSi3O8)
Quartz (likely tumbled or naturally water-worn)
Quartz (SiO₂ - Silicon Dioxide)
Garnet (Almandine/Pyrope series)
Silicate mineral (Almandine: Fe3Al2Si3O12; Pyrope: Mg3Al2Si3O12)
Quartz (Clear or Milky)
Silicon Dioxide (SiO2)
Sodalite
Na8(Al6Si6O24)Cl2
Yellow Calcite
Calcium Carbonate (CaCO3)
Hematite
Iron (III) oxide (Fe2O3)
Granitic Gneiss
Gneiss (Complex silicate composition)
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
Quartz Mineral
Silicon Dioxide (SiO2)
Quartz (possibly milky quartz or quartz with inclusions)
SiO2 (Silicon Dioxide)
Gneiss
Gneiss (High-grade metamorphic rock)
Zircon
Zircon (ZrSiO4)
Magnetite / Lodestone
Magnetite (Fe3O4)
White Quartz
Silicon Dioxide (SiO2)