Quartz (Iron-stained)
Silicon Dioxide (SiO2)
Category
Browse metamorphic or igneous specimens identified by the Rock Identifier community.
Quartz (Iron-stained)
Silicon Dioxide (SiO2)
Quartz (Golden Quartz / Citrine / Iron-stained Quartz)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Clear Quartz Point
Silicon Dioxide (SiO2)
Mixed Mineral Bead Bracelet
Polycrystalline and Monocrystalline Silicates/Oxides (Quartz, Howlite, Hematite)
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
Quartz (Small Fragment)
Silicon Dioxide (SiO2)
Black Tourmaline (Schorl)
Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
Smoky Quartz
Silicon dioxide (SiO2)
Blue Quartz
Silicon dioxide (SiO2) with inclusions
Orange Calcite
Calcium Carbonate (CaCO3)
Clear Quartz
Silicon Dioxide (SiO2)
Quartz (Smoky Quartz variant)
Silicon Dioxide (SiO2)
Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz/White Quartz
Silicon Dioxide (SiO2)
Emerald in Matrix
Beryl (Be3Al2Si6O18) with Chromium impurities
Rhodonite
Manganese Inosilicate (Mn,Fe,Mg,Ca)SiO3
Moonstone with Black Tourmaline
Feldspar (KAlSi3O8) with inclusions of Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
Milky Quartz
Silicon Dioxide (SiO2)
Citrine
SiO2 (Silicon Dioxide)
Specular Hematite
Hematite (Fe2O3)
Rhodolite Garnet
Mg3Al2(SiO4)3 - Fe3Al2(SiO4)3 (Pyrope-Almandine series)
Peacock Ore (Bornite/Chalcopyrite)
Bornite (Cu5FeS4) or Chalcopyrite (CuFeS2)
Quartz (Drusy/Crystalline)
Silicon Dioxide (SiO2)
Blue Quartz (potentially Dumortierite-included)
Silicon Dioxide (SiO2) with inclusions
Quartz Sand Gravel
Silicon Dioxide (SiO2)
Yellow Quartz
Silicon Dioxide (SiO2)
Quartz / Citrine Quartz
Silicon Dioxide (SiO2)
Pyrite
Iron Sulfide (FeS2)
Blue Apatite
Fluorapatite / Ca5(PO4)3F
Hypersthene
Enstatite (Hypersthene variety), (Mg,Fe)SiO3
Muscovite Mica
KAl2(AlSi3O10)(F,OH)2
Feldspar (specifically Orthoclase)
Potassium Aluminum Silicate (KAlSi3O8)
Black Tourmaline
Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
Natural freshwater pearls
Pearl (nacreous calcium carbonate; chiefly aragonite, CaCO₃)
Biotite Schist
Biotite Gneissic Schist (K(Mg,Fe)3AlSi3O10(OH)2)
Gneiss and Igneous Rock Collection
Foliated Metamorphic Rock (Gneiss) / Igneous Rocks
Almandine Garnet
Almandine (Fe3Al2(SiO4)3)
Mica (Lepidolite or Muscovite)
Phyllosilicate mineral (KAl2(AlSi3O10)(OH)2 for Muscovite)
Garnet (Almandine)
Almandine (Fe3Al2(SiO4)3)