Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Category
Mineral, Jewelry
Browse mineral, jewelry specimens identified by the Rock Identifier community.
Learn about Mineral, Jewelry in the encyclopedia
View all →
Quartz
Silicon Dioxide (SiO2)
mineral
Aquamarine with Ruby Accent
Beryllium Aluminum Silicate (Be3Al2Si6O18) with Aluminum Oxide (Al2O3)
mineral
Dragon Vein Agate
Chalcedony (Quartz) - SiO2
mineral
Black Onyx (Tumbled)
Silicon Dioxide (SiO2)
mineral
Carnelian
Chalcedony (SiO2) with Iron Oxide inclusions
mineral
Fluorite
Calcium Fluoride (CaF2)
mineral
Charoite
(K,Na)5Ca6Si12O30(OH,F)·nH2O
mineral
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Carnelian (Chalcedony)
Silicon Dioxide (SiO2)
mineral
Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite mica
mineral
Mother of Pearl (Nacre)
Aragonite with Conchiolin (CaCO3)
mineral
Hypersthene
Enstatite (Hypersthene variety), (Mg,Fe)SiO3
mineral
Banded Agate (Pink/White)
Silicon Dioxide (SiO2) - Variety of Chalcedony
mineral
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Lapis Lazuli
Lapis Lazuli (Metamorphic rock primarily composed of Lazurite, Calcite, and Pyrite)
rock
Quartz (specifically Milky or Clear Quartz fragment)
Silicon Dioxide (SiO2)
mineral
Red Jasper with Quartz Veining
Jasper (Silicon Dioxide, SiO2) with Quartz (SiO2) inclusions
sedimentary
Pyrite
Iron Sulfide (FeS2)
mineral
Granite
Granite (a broadly defined plutonic igneous rock, often more specifically classified as quartz monzonite or granodiorite based on precise mineral percentages)
igneous
Tiffany Stone
Fluorite Opal (a complex mix of Fluorite, Opal, Calcite, Dolomite, Quartz, and Bertrandite)
mineral
Lepidolite
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2
mineral
Crazy Lace Agate
Chalcedony (SiO2)
mineral
Amethyst
Silicon Dioxide with trace Iron (SiO2)
mineral
Rose Quartz
Silicon Dioxide (SiO2) with traces of titanium, iron, or manganese
mineral
Garnet
Nesosilicate group (e.g., Almandine: Fe3Al2(SiO4)3)
mineral
Tiger's Eye (Tumbled)
Silicified Riebeckite (SiO2 with Iron inclusions)
mineral
Amber
Succinate (Fossilized Tree Resin)
fossil
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Pearl (nacre)
Calcium Carbonate (mostly CaCO3 as Aragonite) and Conchiolin
Organic Mineraloid
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Sodalite
Sodalite, Na8(Al6Si6O24)Cl2
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Garnet
Almandine (Fe3Al2(SiO4)3)
mineral
Quartz on Matrix
Silicon Dioxide (SiO2)
mineral
Rhyolite
Rhyolite (felsic extrusive igneous rock)
igneous
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Prehnite
Prehnite (Ca2Al(AlSi3O10)(OH)2)
mineral
Azurite
Azurite (Cu3(CO3)2(OH)2)
mineral
Turquoise
Hydrated phosphate of copper and aluminium: CuAl6(PO4)4(OH)8·4H2O
mineral