Quartz Geode Fragment
Silicon Dioxide (SiO2)
Category
Browse mineral, variety of chalcedony (microcrystalline quartz) specimens identified by the Rock Identifier community.
Quartz Geode Fragment
Silicon Dioxide (SiO2)
Yellow Chalcedony (likely carnelian or yellow agate)
Silicon Dioxide (SiO₂)
Petrified Wood
Silicified Wood (primarily SiO2)
Chert (Iron-stained)
Microcrystalline Quartz (SiO2)
Yellow Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Jade (likely Jadeite)
Jadeite (a pyroxene mineral) or Nephrite (a variety of amphibole mineral)
Quartz (likely Clear Quartz or Rock Crystal)
Quartz (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
White Quartz
Silicon Dioxide (SiO2)
Jasper
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milk Quartz (Tumbled)
Silicon Dioxide (SiO2)
Prase Quartz on Feldspar
Quartz (Silicon Dioxide, SiO2) with Hedenbergite inclusions on Potassium Feldspar (KAlSi3O8)
Agate (Polished Slice)
Banded Chalcedony (SiO2)
Agate
Banded Chalcedony (SiO2)
Quartz (Milky/Common)
Silicon Dioxide (SiO2)
Petrified Wood
Silicified Wood (primarily SiO2)
Chalcedony (Agate/Quartz)
Silicon Dioxide (SiO2)
Shiva Lingam
Cryptocrystalline Quartz (Jasper/Chalcedony) with Iron Oxide inclusions
Grey Jasper (Tumbled Quartz variant)
Jasper (Silicon Dioxide, SiO2)
Quartzite
Quartzite (SiO2)
Chalcedony with inclusions (Agate/Quartz)
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Wood Jasper
Siliceous sedimentary rock (variety of Chert/Chalcedony)
Milky Quartz
Silicon Dioxide (SiO2)
Chert (Field-collected variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Beach Pebble (Chert/Quartzite)
Microcrystalline Quartz (SiO2)
Chert / Flint (River Pebble)
Cryptocrystalline Quartz (SiO2)
Milky Quartz Pebbles
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)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)