Quartz
Silicon Dioxide (SiO2)
Category
Browse sedimentary rock (possibly conglomerate or breccia with a quartz vein) specimens identified by the Rock Identifier community.
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
River Cobble (likely Sandstone or Siltstone type)
Sandstone or Siltstone (common rock types that form river cobbles)
Milky Quartz
Silicon Dioxide (SiO2)
Amethyst
Silicon dioxide (SiO2) with iron impurities
Quartz
Silicon Dioxide (SiO2)
Yellow Aventurine
Quartz (SiO2) with inclusions
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Heart-shaped Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Carnelian (Chalcedony)
Cryptocrystalline Quartz (SiO2) with Iron Oxide impurities
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Ferruginous Quartz
Silicon Dioxide (SiO2) with Iron Oxide inclusions
Quartz
Silicon Dioxide (SiO2)
Red Jasper
Microcrystalline Quartz (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz with Iron Staining
Silicon Dioxide (SiO2)
Quartz Druzy
Crystalline Silicon Dioxide (SiO2)
Quartz Geode
Silicon Dioxide (SiO2) in a sedimentary or volcanic host
Basalt and Quartz pebbles
Basalt (extrusive igneous rock) and Quartz (SiO2)
Quartzite with Quartz Veins
Metamorphic Quartzite (SiO2)
Tourmalinated Quartz
Silicon Dioxide with Tourmaline inclusions (SiO2 + Na(Fe3Al6)(Al5Si6O18)(BO33)(OH4))
Sandstone
Clastic sedimentary rock (Quartz arenite / Arkose)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
River Pebble / Chert Pebble
Microcrystalline Quartz (SiO2)
Milky Quartz (Tumbled/Polished)
Silicon Dioxide (SiO2)
Dalmatian Stone (often called Dalmatian Jasper)
Peralkaline Feldsphathic Igneous Rock
Quartz Pebble
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Sandstone
Sedimentary Clastic Rock (Quartz Arenite)
Quartz Pebble
Silicon Dioxide (SiO2)