Carnelian
Carnelian (Chalcedony / SiO2)
Category
Browse mineral, variety of chalcedony (microcrystalline quartz) specimens identified by the Rock Identifier community.
Carnelian
Carnelian (Chalcedony / SiO2)
Agate (Common Chalcedony)
Silicon Dioxide (SiO2)
Chert (Nodule)
Microcrystalline or cryptocrystalline Quartz (SiO2)
Chert (Pink Chert / Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Quartzite
Quartzite (predominantly SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Chalcedony (Quartz Nodule)
Silicon Dioxide (SiO2)
Milky Quartz (with potential inclusion)
Silicon Dioxide (SiO2)
Chert (Quartz Variety)
Chert (SiO2)
Chert (Quartz Variety)
Chert (mostly SiO2 / Silicon Dioxide)
Rose Quartz
SiO2 (Silicon Dioxide)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz (Tumbled/Water-worn)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Cloudy Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
Quartz Pebble (Milky Quartz)
Silicon Dioxide (SiO2)
Milk Quartz (or Milky Quartz)
Silicon Dioxide (SiO2)
Milky Quartz (polished heart)
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Lavender Quartz (appearing as beads) and Druzy Quartz
Silicon Dioxide (SiO2)
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Chert / Flint
Chert (varietal name for microcrystalline quartz). Chemical formula: SiO₂
Chert (varieties include Flint and Jasper)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Quartz (likely a clear or rock crystal variety)
Quartz (SiO2 - Silicon Dioxide)
Chert (Quartz Variety)
Chert (Silicon Dioxide, SiO2)
Moss Agate
Silicon Dioxide (SiO2) with inclusions of manganese or iron oxide
Chert (Jasper variety)
Silicon dioxide (SiO2) - Microcrystalline Quartz
Flower Agate
Chalcedony (cryptocrystalline Quartz) with Spherulite inclusions; SiO2
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon dioxide (SiO2)
Quartz (beads)
SiO2 (Silicon Dioxide)
Petrified Wood
Silicified wood (Quartz, Chalcedony, or Opal)