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)
Boulder Opal
Amorphous Hydrous Silica (SiO2·nH2O)
Milky Quartz
Silicon Dioxide (SiO2)
Ferruginous Quartz
Silicon Dioxide (SiO2) with Iron Oxide inclusions
Amethyst (Chevron Amethyst)
Silicon Dioxide (SiO2) with iron impurities
Carnelian
Carnelian (SiO2 with Iron Oxide impurities)
Potassium Feldspar (Orthoclase)
KAlSi3O8 (Potassium Aluminum Silicate)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Labradorite
(Ca, Na)(Al, Si)4O8
Pyrite (on Quartz/Sulfide matrix)
Iron Sulfide (FeS2)
Agate Geode
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Chalcedony / Agate
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Dendritic Agate
Silicon Dioxide (SiO2) with inclusions of manganese or iron oxide
Malachite
Copper carbonate hydroxide [Cu2CO3(OH)2]
Milky Quartz
Silicon Dioxide (SiO2)
Pyrite in Matrix (often with Chalcopyrite)
Iron Sulfide (FeS2) / Copper Iron Sulfide (CuFeS2)
Rhodonite
Manganese silicate (Mn,Fe,Mg,Ca)SiO3
Pink Chalcedony
Silicon Dioxide (SiO2)
Satin Spar Selenite
Gypsum (Calcium Sulfate Dihydrate, CaSO4·2H2O)
Larimar
Blue Pectolite (NaCa2Si3O8(OH))
Milky Quartz
Silicon Dioxide (SiO2)
Pink Calcite (Mangano Calcite)
Calcium Carbonate (CaCO3)
Herkimer Diamond (Quartz Crystal)
Silicon Dioxide (SiO2)
Chalcopyrite
Copper Iron Sulfide (CuFeS2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Raw Emerald
Beryl (Be3Al2Si6O18 with Chromium/Vanadium)
Green Calcite
Calcium Carbonate (CaCO3)
Caribbean Calcite
Calcium Carbonate with Aragonite (CaCO3)
Gold-Bearing Quartz Ore
Crystalline Silicon Dioxide (SiO2) with Trace Aurum (Au)
Ruby
Corundum (Al2O3 with Chromium traces)
Murex Fossil
Muricidae (Calcium Carbonate fossilization)
Moqui Marbles
Iron Oxide Concretion (Hematite/Goethite)
Sandstone
Arenite
Sandstone with Quartz Vein
Arenite with SiO2 intrusion
Granite
Granite (interlocking crystals of quartz, feldspar, and mica)
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
Mahogany Obsidian
Volcanic glass (high silica) with inclusions of Magnetite or Hematite
Mica Schist
Mica Schist (Muscovite subclass)
Glauconite (Glauconitic Sandstone)
Glauconite [(K,Na)(Fe,Al,Mg)2(Si,Al)4O10(OH)2]
Sandstone with Quartz Veining
Arenite with SiO2 veins