Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Category
Browse mineral, variety of quartz specimens identified by the Rock Identifier community.
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Milky quartz (quartz crystal)
Quartz, silicon dioxide (SiO₂)
Raw Quartz
Silicon Dioxide (SiO2)
Quartz (Yellow/Citrine variety)
Silicon Dioxide (SiO2)
Quartz (Smoky/Clear variety)
Silicon Dioxide (SiO2)
Clear Quartz
Silicon dioxide (SiO2)
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2)
Tumbled chalcedony (likely gray/brown agate)
Microcrystalline quartz, SiO₂ (chalcedony; possible agate variety)
Banded Agate
Agate (Cryptocrystalline variety of Quartz, SiO2)
Rose Quartz
Silicon Dioxide (SiO2)
Quartz (Milky or Chalcedony)
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Rounded white pebble, likely quartz or feldspar
Most consistent with milky quartz (SiO₂), though altered feldspar or calcite is possible from the image
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Tumbled Quartz
Silicon Dioxide (SiO2)
Quartz Geode
Silicon Dioxide (SiO2)
Green Quartz (Prasiolite)
Crystalline Silicon Dioxide (SiO2)
Granite (Pink/Potassium Feldspar Granite)
Granite (plutonic rock, coarse-grained)
Tiger's Eye
Tiger's Eye (a variety of Quartz, SiO₂)
Rose Quartz
Silicon Dioxide (SiO2) with trace Manganese, Titanium, or Iron
Quartz (Milky/Clear variety)
Silicon Dioxide (SiO2)
Granitic Pegmatite with Schorl Tourmaline
Granitic Pegmatite (Schorl: NaFe3Al6(BO3)3Si6O18(OH)4)
Quartz (Chalcedony/Agate nodule)
Silicon dioxide (SiO2)
Jasper
Silicon dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Raw amethyst (purple quartz)
Amethyst; quartz, SiO₂, colored by trace iron and irradiation
Tumbled banded jasper, likely brecciated jasper
Microcrystalline quartz (SiO₂) with iron-oxide and clay inclusions
Jasper with Quartz Veins
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Quartz (Iron-stained)
Silicon Dioxide (SiO2)
Quartz (Citrine variety)
Silicon Dioxide (SiO2)
Milky Quartz Pebble
Silicon Dioxide (SiO2)
Chalcedony (Agate)
Cryptocrystalline Quartz (SiO2)
Quartz (Milky/Chalcedony variety)
Silicon Dioxide (SiO2)
Red jasper pebble
Jasper, microcrystalline quartz (SiO₂) colored mainly by iron oxides
Red jasper (likely polished/tumbled)
Microcrystalline quartz/chalcedony, SiO₂, colored mainly by iron oxides
Quartz Pebble
Silicon Dioxide (SiO2)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Tumbled milky quartz pebble
Quartz (silicon dioxide, SiO₂), opaque-to-translucent milky variety
Tumbled jasper, likely red/brown jasper
Microcrystalline quartz (chalcedony), SiO₂, colored chiefly by iron oxides
Clear Quartz
Silicon Dioxide (SiO2)