Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Category
Browse mineral with artificial coating specimens identified by the Rock Identifier community.
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Amazonite
K(AlSi3O8) - Lead-bearing Microcline
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
Variscite (in Matrix)
Hydrated aluminum phosphate (AlPO4·2H2O)
Quartz Geode Fragment
Silicon Dioxide (SiO2)
Herkimer Diamond
Double-terminated Quartz (Silicon Dioxide, SiO2)
Quartz Geode (partially formed)
Silicon Dioxide (SiO2)
Amethyst
Silicon Dioxide (SiO2) with iron impurities
Ruby (Corundum)
Aluminium oxide (Al2O3) with Chromium traces
Amethyst
Silicon Dioxide (SiO2) with iron impurities
Carnelian
Chalcedony (SiO2)
Rhodonite
Manganese silicate (Mn,Fe,Mg,Ca)SiO3
Onyx (Black) and Mother of Pearl Inlay
Silicon Dioxide (SiO2) for Onyx; Aragonite (CaCO3) for Mother of Pearl
Pyrite
Iron Disulfide (FeS2)
Chrysoprase
Chalcedony (Silicon Dioxide, SiO2)
Carnelian Agate
Chalcedony (SiO2) with iron oxide inclusions
Gneiss
Gneiss (High-Grade Metamorphic Rock)
Foliated Gneiss
Gneiss (Metamorphic Rock)
Chalcedony (Agate Pebble)
Silicon Dioxide (SiO2)
Pyrite (Fools Gold)
Iron Disulfide (FeS2)
Fluorite
Calcium fluoride (CaF2)
Rhodochrosite
Manganese Carbonate (MnCO3)
Greenish rock with white veins, possibly epidote or chlorite bearing rock with quartz/calcite veins
Altered mafic rock or Epidosite
Fossil Shark Tooth
Chondrichthyes (class); likely Lamniformes (order) fossilized in Apatite/Hydroxyapatite
Sandstone
Arenite (SiO2 primarily)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz Geode
Silicon Dioxide (SiO2)
Chalcopyrite
Copper Iron Sulfide (CuFeS2)
Gold in Quartz Matrix
Native Gold (Au) in Quartz (SiO2)
Gold Grain
Native Gold (Au)
Black Onyx
Silicon dioxide (SiO2)
Native Gold in Quartz
Native Gold (Au)
Gold Nugget
Native Gold (Au)
Pearl
Calcium Carbonate (CaCO3) in the form of Aragonite
Botryoidal Lace Agate
Agate (Silicon Dioxide, SiO2)
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
Gemstones (Emerald and Yellow Topaz or Citrine)
Beryl (Be3Al2Si6O18) and Quartz (SiO2) or Topaz (Al2SiO4(F,OH)2)
Ferruginous Quartz
Iron-stained Quartz (Silicon Dioxide + Fe2O3 / FeO(OH))
Tree Agate
Silicon Dioxide (SiO2) with dendritic inclusions
Chrysocolla on Quartz
Chrysocolla (Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O) with Quartz (SiO2)
Barite (Desert Rose or Cockscomb variety)
Barium Sulfate (BaSO4)