Quartz (Milky or Cloudy Quartz)
Silicon Dioxide (SiO2)
Category
Browse mineral (specifically a variety of chalcedony, which is a microcrystalline quartz) specimens identified by the Rock Identifier community.
Quartz (Milky or Cloudy Quartz)
Silicon Dioxide (SiO2)
Jasper
Silicon dioxide (SiO2)
Jasper (brecciated or orbicular variety)
Silicon dioxide (SiO2) with iron oxide inclusions
Jasper
Silicon dioxide (SiO2) with impurities
Ocean Jasper (Orbicular Jasper)
Silicon Dioxide (SiO2) - Variety of Chalcedony/Quartz
Jasper (Imperial Jasper style)
Silicon Dioxide (SiO2) with impurities
Quartz (likely milky/rose quartz variety)
Quartz (SiO2 - Silicon Dioxide)
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Tree Agate
Silicon Dioxide (SiO2)
Jasper
Jasper (Silicon Dioxide, SiO2)
Banded Agate
Silicon Dioxide (SiO2) - variety Chalcedony
Red Jasper
Silicon Dioxide (SiO2) with Ferric Iron inclusions
Clear Quartz
Silicon Dioxide (SiO2)
Chert (Nodule)
Microcrystalline Quartz (SiO2)
Chert (Jasper variety)
Microcrystalline Quartz (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Chalcedony (Agate/Carnelian variety)
Cryptocrystalline Quartz (SiO2)
Jasper with Chert
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Chert (specifically Yellow Jasper variety)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Jasper (River pebble)
Jasper / Silicon Dioxide (SiO2)
Chert (Chalk-associated Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Milky Quartz
Quartz / Silicon Dioxide (SiO2)
Chert (Nodule)
Microcrystalline quartz (SiO2)
Banded Agate
Cryptocrystalline Quartz (SiO2)
Jasper with Hematite (Red Jasper)
Silicon Dioxide with Iron Oxide (SiO2 and Fe2O3)
Banded Agate (Yellow Agate)
Silicon Dioxide (SiO2)
Agate (Polished Nodule)
Agate (Silicon Dioxide, SiO2)
Blue Agate (Dyed)
Silicon Dioxide (SiO2) - Variety of Chalcedony
Lake Superior Agate
Cryptocrystalline Quartz (SiO2)
Red Jasper
Jasper (Silicon Dioxide) - SiO2
Chalcedony Geode
Chalcedony (SiO2) within a geode structure
Quartz (Microcrystalline variety)
Silicon Dioxide (SiO2)
Strawberry Quartz
Quartz with Hematite inclusions (SiO2 + Fe2O3)
Polished Ocean Jasper
Orbicular Jasper (variety of Chalcedony/Quartz, SiO2)
Jasper with Iron Staining
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Chert Nodule (Fossiliferous Chert)
Microcrystalline Quartz (SiO2)
Chert
Silicon dioxide (SiO2)
Chert (specifically Red Chert or Jasper)
Microcrystalline Quartz (SiO2)
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Lake Superior Agate
Banded Chalcedony (SiO2)
Aventurine (specifically Green Aventurine)
Silicon Dioxide (Quartz) with inclusions of Fuchsite; SiO2 + K(Al,Cr)2AlSi3O10(OH)2
Chert / Chalcedony
Microcrystalline Quartz (SiO2)