Smoky Quartz
Silicon Dioxide (SiO2)
Category
Browse synthetic (ceramic) specimens identified by the Rock Identifier community.
Smoky Quartz
Silicon Dioxide (SiO2)
Cubic Zirconia (CZ)
Cubic Zirconium Dioxide (ZrO2)
Porcelain (White Ceramic)
Mullite-bearing Vitrified Ceramic (Major phases: Mullite Al6Si2O13, Glassy Silica SiO2)
Quartzite (with possible Calcite/Limestone weathering)
Quartzite (primarily SiO2)
Chert (v. Flint)
Sedimentary Cryptocrystalline Quartz (SiO2)
Synthetic Faux Fur Fursuit
Polyacrylonitrile / Polyester (Synthetic Textile)
Opaline Glass (Opalite)
Synthetic Silicon Dioxide Glass
Opalite
Synthetic Glass (Simulated Opal)
Artificial Rock Face (Faux Rock)
Glass Fiber Reinforced Concrete (GFRC)
Magnetite (Iron Ore)
Magnetite (Fe3O4)
Opalite
Synthetic Glass (Amorphized Silicon Dioxide)
Pearl and Garnet Glass
Calcium Carbonate (CaCO3) for pearl; Silicon Dioxide (SiO2) for glass
Lapis Lazuli
Lazurite-dominated metamorphic rock ((Na,Ca)8(AlSiO4)6(SO4,S,Cl)2)
Emerald
Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities
Limonite (Iron Ore)
Limonite; FeO(OH)·nH2O
Milky Quartz
Silicon Dioxide (SiO2)
Chert (concretionary/nodular variant)
Microcrystalline Quartz (SiO2) with possible fossil or mineral inclusions
Bouncy Ball (Synthetic Rubber Polymer)
Polybutadiene / Ethylene Vinyl Acetate (EVA)
Ferruginous Sandstone (Ironstone)
Arenite with Limonite/Goethite cement
Pyrite
Iron Sulfide (FeS2)
Chalcopyrite-bearing Ore
Chalcopyrite (CuFeS2)
Dyed Alum or Dyed Quartz (Ornamental Crystal)
Silicon Dioxide (SiO2) or Potassium Alum [KAl(SO4)2·12H2O]
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Hematite
Iron(III) oxide (Fe2O3)
Cobalt Glass Slug (Man-made Glass)
Amorphous Silica with Cobalt Oxide (SiO2 + CoO)
Cubic Zirconia (CZ)
Zirconium dioxide (ZrO2)
Opalite
Synthetic Glass (SiO2 + impurities)
Travertine (Ceramic Tile)
Terrestrial Sedimentary Rock / Calcium Carbonate (CaCO3)
Diamond (or Cubic Zirconia)
Crystallized Carbon (C) for Diamond; Zirconium Dioxide (ZrO2) for CZ
Note: The image provided is a fabric sock, not a geological specimen.
Polyester-Cotton Blend with Elastane
Synthetic Ruby (Jewel Bearings)
Synthetic Corundum (Al2O3 doped with Chromium)
Opalite
Opalescent Glass (SiO2 + coloring agents)
Blue Sapphire
Corundum (Al2O3)
Quartzite
Quartzite (primarily SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Lepidolite
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2
Brachiopod Fossil in Shale
Phylum Brachiopoda (often species of Order Spiriferida or Rhynchonellida)
Quartzite
Quartzite (primarily SiO2)
Smoky Quartz
Smoky Quartz (Silicon Dioxide, SiO2)
Blue Sapphire (in a faceted jewelry setting)
Corundum (Al2O3) with trace Iron and Titanium
Ruby
Corundum (Al2O3 with Chromium)
Lepidolite Polished Point
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)