Quartz
Silicon Dioxide (SiO2)
Category
Browse mineral (variety of quartz) specimens identified by the Rock Identifier community.
Quartz
Silicon Dioxide (SiO2)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Amethyst (likely tumbled or polished)
Quartz, SiO₂; purple color commonly caused by trace iron and natural irradiation
Chrysocolla in Quartz
Chrysocolla (Cu,Al)2H2Si2O5(OH)4·nH2O in Quartz (SiO2)
Amethyst Geode
Quartz (SiO2, variety Amethyst)
Quartz fragment
Quartz (silicon dioxide, SiO₂)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Jasper
Microcrystalline Quartz (SiO2)
Small polished gemstone chips, likely mixed quartz varieties
Quartz (SiO₂), possibly including smoky quartz and other varieties; exact identification is uncertain from the image
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milk Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Rough Rose Quartz
Quartz (Silica - SiO2)
Rose Quartz
Silicon Dioxide (SiO2) with traces of titanium, iron, or manganese
Cloudy Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Brecciated jasper
Jasper (microcrystalline quartz, SiO₂), likely iron-oxide-rich breccia
Tumbled amethyst
Quartz (SiO₂), purple variety colored by trace iron and natural irradiation
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Ferruginous Quartz
Silicon Dioxide (SiO2) with Hematite/Limonite inclusions
Tumbled jasper, likely red/brown jasper
Microcrystalline quartz (chalcedony), mainly SiO₂, colored by iron oxides
Rose Quartz
Silicon Dioxide (SiO2) with traces of titanium, manganese, or iron
Yellow Aventurine
Quartz (SiO2) with inclusions
Rose Quartz
Silicon Dioxide (SiO2)
Mixed Mineral Bead Bracelet
Polycrystalline and Monocrystalline Silicates/Oxides (Quartz, Howlite, Hematite)
Tumbled amethyst
Quartz, SiO₂; purple coloration typically from iron impurities and natural irradiation
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of Titanium, Iron, or Manganese
Quartz
Silicon Dioxide (SiO2)
Quartz with Matrix
Silicon Dioxide (SiO2)
Quartz (Smoky/Brown variety)
Silicon dioxide (SiO2)
Likely quartz cabochon in a ring
Quartz (SiO₂), possibly clear or milky quartz; identification is uncertain from the photograph
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)