Milky Quartz
Silicon Dioxide (SiO2)
mineral
Category
Mineral, Jewelry
Browse mineral, jewelry specimens identified by the Rock Identifier community.
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Goldstone (Brown/Gold variety)
Aventurine Glass (SiO2 with Copper inclusions)
Synthetic/Man-made glass (often mistaken for a mineral)
Tumbled Stone Collection (featuring Tiger's Eye, Rose Quartz, and Moss Agate)
Mixed Silicates and Oxides (predominantly SiO2 group minerals)
mineral
Amazonite
Microcline (K(AlSi3O8))
mineral
Banded Carnelian
Carnelian (Silicon Dioxide / SiO2)
mineral
Peridot (Olivine)
Olivine ((Mg, Fe)2SiO4)
mineral
Black Onyx
Silicon Dioxide (SiO2) - variety of Chalcedony
mineral
Yellow Jade (often Serpentine or Dolomite)
Primarily Serpentine (Mg3Si2O5(OH)4) or Dolomite (CaMg(CO3)2), though the term 'yellow jade' is also sometimes applied to varieties of true nephrite or jadeite.
Mineral, often a rock given its aggregate nature
Labradorite
(Ca,Na)(Al,Si)4O8
mineral
Black Onyx
Silicon Dioxide (SiO2)
mineral
Amazonite
Microcline (KAlSi3O8)
mineral
Sodalite
Sodalite (Na8Al6Si6O24Cl2)
mineral
Aventurine (Green)
Silicon Dioxide (Quartz variety) containing Fuchsite - SiO2 + K(Al,Cr)2AlSi3O10(OH)2
mineral
Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
mineral
Carnelian
Carnelian (SiO2 with iron oxide impurities)
mineral
Amethyst (Tumbled Cabinet Stone)
Silicon Dioxide (SiO2) with iron impurities
mineral
Carnelian
Chalcedony (Silicon Dioxide, SiO2)
mineral
Aventurine
Silicon Dioxide (SiO2) with inclusions
mineral
Carnelian (Red-Orange Chalcedony)
Silicon Dioxide (SiO2)
mineral
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
mineral
Fossil Shark Tooth
Squalicorax (likely Squalicorax pristodontus or Squalicorax falcatus)
fossil
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite mica
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
mineral
Aragonite Star Cluster
Aragonite (CaCO3)
mineral
Aventurine
Silicon Dioxide with Fuchsite inclusions (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)
mineral
Indigo Gabbro
Gabbro (MaFIC intrusive rock)
igneous
Amber
Succinate (Succinite for Baltic varieties)
mineraloid
Carnelian
SiO2 (Microcrystalline Quartz / Chalcedony)
mineral
Rose Quartz
Silicon Dioxide (SiO2)
mineral
Turquoise
Turquoise, CuAl6(PO4)4(OH)8·4H2O
mineral
Black Jasper
Silicon dioxide (SiO2) with carbon/mineral inclusions
sedimentary
Staurolite
Staurolite (Fe2Al9O6(SiO4)4(O,OH)2)
mineral
Coprolite
Fossilized Feces
sedimentary
Cream River Jasper
Silicified microcrystalline quartz (SiO2)
sedimentary
Blue Apatite
Calcium Phosphate (Ca5(PO4)3(F,Cl,OH))
mineral
Copper and Quartz beads
Native Copper (Cu) and Crystalline Quartz (SiO2)
mineral
Lapis Lazuli (Low Grade)
Lazurite-rich metamorphic rock ((Na,Ca)8(AlSiO4)6(SO4,S,Cl,OH)2)
metamorphic
Barite Rose on Marcasite
Barium Sulfate (BaSO4) on Iron Sulfide (FeS2)
mineral
Amygdaloidal Rhyolite (often called Lake Superior Agate relative)
Rhyolite with Calcite/Quartz amygdules (SiO2 and secondary minerals)
igneous
Druzy Quartz Geode
Silicon Dioxide (SiO2)
mineral
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite mica
metamorphic