Sandstone (likely a river or beach pebble)
Sandstone (a clastic sedimentary rock)
Category
Browse quartz specimens identified by the Rock Identifier community.
Sandstone (likely a river or beach pebble)
Sandstone (a clastic sedimentary rock)
Blue Tiger's Eye
Crocidolite (fibrous riebeckite) silicified to Quartz (SiO2)
Ferruginous Quartz
Iron-stained Quartz (SiO2 with Fe2O3 impurities)
Ferruginous Quartz
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions
Quartz Pebble
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
Amethyst (Digital/Conceptual Representation)
Amethyst (Silicon Dioxide with iron impurities, SiO2)
Gold Nugget Jewelry
Native Gold (Au)
Quartz / Quartzite
Silicon Dioxide (SiO2)
Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
Quartz Pebble
Crystalline Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Sandstone (Quartzose)
Arenite (primarily SiO2)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Red Sandstone
Clastic Terrigenous Sedimentary Rock (typically Hematitic Quartz Arenite or Arkose)
Granitic Pegmatite with Schorl Tourmaline
Granitic Pegmatite (Schorl: NaFe3Al6(BO3)3Si6O18(OH)4)
Milky Quartz with Dendritic Inclusions
Silicon Dioxide (SiO2) with Manganese/Iron oxide inclusions
Sandstone
Sandstone (clastic sedimentary rock), primarily SiO2
Jasper in Quartzite (likely Cinnabar or Iron inclusions)
Silicon dioxide (SiO2) with impurities
Quartz (River Pebble)
Silicon Dioxide (SiO2)
Red Sandstone
Arenite (with Iron Oxide pigmentation)
Geode (Unopened)
Silica-lined Vug (primarily SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Green Garden Quartz (Phantom Quartz)
Silicon Dioxide (SiO2) with Chlorite inclusions
Agate Slices and Clear Quartz Points
Agate (SiO2 Chalcedony) and Clear Quartz (SiO2 Crystalline)
Yellow Aventurine
Silicon Dioxide (SiO2) with inclusion of Mica
Amethyst Quartz
SiO2 (Silicon Dioxide)
Ametrine
SiO2 (silicon dioxide)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Quartz Pebble
Quartz (Silicon Dioxide - SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz Geode
Silicon Dioxide (SiO₂)
Quartz Pebble
Silicon Dioxide (SiO2)