Citrine
Silicon Dioxide (SiO2)
Category
Browse igneous and sedimentary specimens identified by the Rock Identifier community.
Citrine
Silicon Dioxide (SiO2)
Lapis Lazuli
Lapis Lazuli (Complex silicate mineral mix including Lazurite, Pyrite, and Calcite)
River Quartz Cobble
Silicon Dioxide (SiO2)
Amethyst
Crystalline Silicon Dioxide with Iron impurities (SiO2)
Bloodstone
Heliotrope (a variety of Cryptocrystalline Quartz / Jasper, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
Rose Quartz
Silicon Dioxide (SiO2) with traces of titanium, iron, or manganese
Epidote
Epidote (Ca2(Al,Fe)3(SiO4)3(OH))
Dendritic Agate
Silicon Dioxide (SiO2) with inclusions
Quartz
Silicon Dioxide (SiO2)
Labradorite (Gray Tumbled)
Labradorite (Ca,Na)(Al,Si)4O8
Quartz (Citrine or Iron-Stained)
Silicon Dioxide (SiO2)
Biotite / Black Mica
K(Mg,Fe)3(AlSi3O10)(F,OH)2
Dyed Agate
Agate (Silicon dioxide)
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
Moonstone
Orthoclase (KAlSi3O8) with inclusions of Albite (NaAlSi3O8)
Sodalite
Sodalite (Sodium Aluminum Silicate Chloride) - Na8(Al6Si6O24)Cl2
Smoky Quartz
Silicon Dioxide (SiO2)
Smoky Quartz
Smoky Quartz (SiO2)
Orthoclase Feldspar
Orthoclase (KAlSi3O8)
Citrine
Silicon Dioxide (SiO2)
Greenstone
Chlorite schist or Epidosite
Gemstones (Emerald and Yellow Topaz or Citrine)
Beryl (Be3Al2Si6O18) and Quartz (SiO2) or Topaz (Al2SiO4(F,OH)2)
Rose Quartz
Quartz (Silicon Dioxide, SiO2)
Sunstone
(Ca,Na)((Al,Si)2Si2)O8 (Plagioclase Feldspar)
Citrine
Silicon Dioxide (SiO2)
Chevron Amethyst
Silicon dioxide, SiO2 (Quartz variety)
Blue Sapphire (in a faceted jewelry setting)
Corundum (Al2O3) with trace Iron and Titanium
Muscovite Mica
Muscovite (Potassium Aluminum Silicate) - KAl2(AlSi3O10)(F,OH)2
Rose Quartz
SiO2 (Silicon Dioxide with trace amounts of titanium, iron, or manganese)
Quartz (Amethyst variety)
Silicon Dioxide (SiO2)
Chalcopyrite (Peacock Ore)
Chalcopyrite (CuFeS2)
Amazonite
K(AlSi3O8)
Moss Agate with Jasper
Chalcedony (SiO2 with inclusions)
White Sapphire
Corundum (Al2O3)
Assorted Decorative Tumbled Stones (Quartz, Sodalite, Aventurine, Calcite)
Mixed Silicates and Carbonates (SiO2, Na8(Al6Si6O24)Cl2, CaCO3)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Smoky Quartz (Faceted Beads)
Silicon Dioxide (SiO2)
Amethyst
Silicon Dioxide (SiO2) with iron impurities
Sodalite
Sodalite, Na8(Al6Si6O24)Cl2
Quartz Pebble (Water-worn)
Silicon Dioxide (SiO2)