Quartz (Milky/Common)
Silicon Dioxide (SiO2)
mineral
Category
Metamorphic Or Igneous
Browse metamorphic or igneous specimens identified by the Rock Identifier community.
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Moonstone
Orthoclase (KAlSi3O8) with Albite (NaAlSi3O8) inclusions
mineral
Smoky Quartz
Crystalline Silicon Dioxide (SiO2)
mineral
Almandine Garnet & Tumbled Citrine Quartz
Fe3Al2(SiO4)3 (Garnet) and SiO2 (Quartz)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz
Silicon dioxide (SiO2)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Citrine
Silicon dioxide (SiO2)
mineral
Yellow Quartz (Citrine or Iron-Stained Quartz)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
mineral
Corundum (Pink Sapphire / Ruby)
Al2O3 (Aluminum Oxide)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Labradorite
(Ca,Na)(Al,Si)4O8
mineral
Smoky Quartz
Smoky Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Milky/Clear variety)
Silicon Dioxide (SiO2)
mineral
Aventurine
Quartz (SiO2) with inclusions of Fuchsite
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Calcite
Calcium Carbonate (CaCO3)
mineral
Sapphire (Blue)
Corundum (Al2O3)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz with Hematite/Limonite staining
Silicon Dioxide (SiO2)
mineral
Blue Apatite
Apatite-(CaF), Ca5(PO4)3F
mineral
Moonstone (Blue Flash)
Potassium Aluminum Silicate (KAlSi3O8), a variety of Orthoclase Feldspar
mineral
Aventurine
Quartz with Fuchsite inclusions (SiO2 + K(Al,Cr)2(AlSi3O10)(OH)2)
mineral
Quartz (Milk/Citrine variety)
Silicon Dioxide (SiO2)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Citrine
Silicon Dioxide (SiO2) with iron impurities
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Orthoclase Feldspar (Twinning Specimen)
Orthoclase (KAlSi3O8)
mineral
Corundum (variety Ruby/Sapphire)
Aluminum Oxide (Al2O3)
mineral
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Smoky Quartz
Smoky Quartz (Silicon Dioxide - SiO2)
mineral
Milky Quartz
Crystalline Silicon Dioxide (SiO2)
mineral
White Quartz
Silicon Dioxide (SiO2)
mineral
Magnetite (likely in Hematite or Ironstone)
Magnetite (Fe3O4)
mineral
Milky Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Rainbow Moonstone
White Labradorite (formula: (Na,Ca)(Al,Si)4O8)
mineral