Quartz / Milky Quartz
Quartz (Silicon Dioxide - SiO2)
Category
Browse mineral (gemstone) specimens identified by the Rock Identifier community.
Quartz / Milky Quartz
Quartz (Silicon Dioxide - SiO2)
Amethyst
Silicon Dioxide with Iron impurities (SiO2)
Agate
Silicon Dioxide (SiO2)
Carnelian
Carnelian (SiO2)
Almandine Garnet
Fe3Al2(SiO4)3
Green Tourmaline
Elbaite - Na(Li1.5Al1.5)Al6Si6O18(BO3)3(OH)4
Hematite
Hematite (Fe2O3)
Clear Quartz
Silicon Dioxide (SiO2)
Orange Quartz (Citrine Quartz)
Silicon Dioxide (SiO2)
White Quartz (Tumbled)
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Amethyst
SiO2 (Silicon Dioxide with Iron impurities and natural radiation influence)
Hematite
Iron(III) oxide (Fe2O3)
Sodalite
Sodalite (Sodium Aluminum Silicate Chloride) - Na8(Al6Si6O24)Cl2
Citrine Quartz
Crystalline Quartz (SiO2 with iron impurities)
Kyanite (Blue and Green varieties)
Kyanite (Al₂SiO₅)
Hematite
Iron(III) oxide (Fe2O3)
Carnelian (a variety of Chalcedony)
Silicon Dioxide (SiO2) with Iron Oxide impurities
Specular Hematite (Specularite)
Iron Oxide (Fe2O3)
White Topaz
Aluminum Silicate Fluoride Hydroxide, Al2SiO4(F,OH)2
Clear Quartz Crystal
Silicon Dioxide (SiO2)
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
Grey Agate (Tumbled)
Silicon Dioxide (SiO2)
Chalcedony (Common Opal or Agate variant)
Silicon Dioxide (SiO₂)
Carnelian (Red Agate/Chalcedony)
Cryptocrystalline Quartz (SiO2) with Hematite impurities
Milky Quartz
Silicon Dioxide (SiO2)
Bloodstone (Heliotrope)
Silicon Dioxide (SiO2) with inclusions of Hematite
Fire Agate
Silicon Dioxide (SiO2) with layered Iron Oxide (Limonite/Goethite)
Diamond
Carbon (C)
Carnelian
Carnelian (Silica, SiO2)
Smoky Quartz
Smoky Quartz (Silicon Dioxide - SiO2)
Rose Quartz
Rose Quartz (SiO2 with traces of Titanium, Iron, or Manganese)
Raw Citrine (Yellow Quartz)
Citrine / Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Smoky Quartz
Smoky Quartz (SiO2 - Silicon Dioxide with aluminum impurities)
Blue Calcite
Calcium Carbonate (CaCO3)
Tiger's Eye (Blue/Golden mix)
Pseudomorph of Quartz after Crocidolite (SiO2)
Potassium Feldspar and Quartz
KAlSi3O8 (Potassium Feldspar) and SiO2 (Quartz)
Quartz (Clear Quartz/Rock Crystal)
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Tiffany Stone
Bertrandite (Be4Si2O7(OH)2) mixed with Fluorite (CaF2), Opal, and Chalcedony