Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Category
Mineral, Organic Gemstone
Browse mineral, organic gemstone specimens identified by the Rock Identifier community.
Quartz Pebble (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Smoky Quartz Geode Cluster
Silicon Dioxide (SiO2)
mineral
Labradorite
Labradorite (Ca,Na)(Al,Si)4O8
mineral
Garnet
Garnet Group (often Pyrope or Almandine); X3Y2(SiO4)3
mineral
Olivine (Peridot)
Magnesium Iron Silicate (Mg, Fe)2SiO4
mineral
Labradorite
(Ca, Na)(Al, Si)4O8
mineral
Amethyst Quartz (Chevron Amethyst)
Silicon Dioxide (SiO2) with iron impurities
mineral
Citrine Quartz (likely heat-treated)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz Sphere
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Chalcedony (Agate Nodules)
Silicon Dioxide (SiO2)
mineral
Clear Quartz (Rock Crystal)
Quartz (Silicon Dioxide, SiO2)
mineral
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
mineral
Quartz (Milky/Yellowish variety)
Silicon Dioxide (SiO2)
mineral
Carnelian (Carnelian Agate)
Carnelian (Silicon Dioxide - SiO2)
mineral
Turquoise
Hydrated phosphate of copper and aluminum (CuAl6(PO4)4(OH)8·4H2O)
mineral
Amethyst
Silicon Dioxide (SiO2) with iron impurities
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Botryoidal Hematite (Kidney Ore)
Iron(III) oxide (Fe2O3)
Mineral
Turquoise
Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)
mineral
Turquoise
Hydrated phosphate of copper and aluminium: CuAl6(PO4)4(OH)8·4H2O
Mineral
Moonstone (Feldspar)
Orthoclase/Albite ((K,Na)AlSi3O8)
mineral
Orange Calcite
Calcite (Calcium Carbonate, CaCO3)
mineral
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite
mineral
Rhodonite in Quartz Matrix
Rhodonite (Manganese Iron Magnesium Calcium Silicate - Mn,Fe,Mg,Ca)SiO3
mineral
Montana Moss Agate
Chalcedony (Silicon Dioxide, SiO2)
mineral
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Chalcedony (Common Opal variant)
Silicon dioxide (SiO2) with microcrystalline structure
mineral
Amethyst
Silicon Dioxide (SiO2) with iron impurities
mineral
Rhodonite
Rhodonite (Manganese Iron Magnesium Calcium Silicate) - (Mn,Fe,Mg,Ca)SiO3
mineral
Rose Quartz
Quartz (Silicon Dioxide) - SiO2
mineral
Quartzite (specifically Milky Quartz variety)
Quartz (SiO2)
metamorphic
Jasper (Picture Jasper variety)
Silicon Dioxide (SiO2) with impurities
sedimentary
Pegmatite
Coarse-grained Igneous Rock (Granitic Pegmatite)
igneous
Green Tourmaline (Verdelite)
Elbaite (Complex Borosilicate: Na(Li,Al)3Al6(BO3)3Si6O18(OH)4)
mineral
Rough Green Tourmaline (Verdelite)
Elbaite (Complex Borosilicate), Na(Li,Al)3Al6(BO3)3Si6O18(OH)4
mineral
Tiger's Eye
Silicon dioxide with crocidolite fibers (SiO2 with chrysotile amphibole inclusions)
Mineral