Blue Chalcedony
Silicon Dioxide (SiO2)
Category
Browse sedimentary (cryptocrystalline quartz) specimens identified by the Rock Identifier community.
Blue Chalcedony
Silicon Dioxide (SiO2)
Fossiliferous Chert
Silicon Dioxide (SiO2) with fossil inclusions
Chert (Pink/Tan variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chalcedony (Agate / Quartz Nodule)
Silicon Dioxide (SiO2)
Chert Arrowhead (Projectile Point)
Chert (Cryptocrystalline Quartz, SiO2)
Chert (often called Flint)
Chert (Cryptocrystalline Quartz, SiO2)
Chert (often colloquially called Flint)
Microcrystalline or cryptocrystalline Quartz (SiO2)
Flint
Chert (SiO2)
Rough Chalcedony / Jasper Nodules
Silicon Dioxide (SiO2)
Chert / Jasper
Silicon Dioxide (SiO2)
Chert / Flint (Artifact)
Microcrystalline Quartz (SiO2)
Jasper and Chalcedony Pebble
Silicon Dioxide (SiO2)
Flint / Chert (Hag Stone)
Silicon Dioxide (SiO2)
Carnelian
Silicon dioxide (SiO2) with iron oxide impurities
Banded Chert / Chalcedony
Silicon Dioxide (SiO2)
Chert with Quartz Veining
Microcrystalline Silica (SiO2)
Chert / Flint (Artifact)
Microcrystalline quartz (SiO2)
Chert (Jasper/Flint variation)
Chert (SiO2)
Chert Arrowhead (Lithic Artifact)
Chert (Cryptocrystalline Quartz, SiO2)
Chalcedony Geode (Botryoidal Agate)
Silicon Dioxide (SiO2)
Red Jasper
Silicon Dioxide (SiO₂)
Chalcedony (Tumbled Pebble)
Silicon Dioxide (SiO2)
Blue Chalcedony
Silicon Dioxide (SiO2)
Quartz
Quartz (SiO₂ - Silicon Dioxide)
Banded Agate
Cryptocrystalline variety of Quartz (SiO2)
Chert (Chalcedony/Flint)
Silicon Dioxide (SiO2)
Chert / Flint Nodule
Microcrystalline quartz (SiO2)
Jasper Pendant
Chalcedony (Quartz) - SiO2
Yellow Quartz (Citrine Quartz / Milky Quartz)
Silicon Dioxide (SiO2)
Chert (Flint variety)
Microcrystalline or cryptocrystalline Quartz (SiO2)
Chert (Nodule)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Mocha Stone (Dendritic Agate)
Silicon Dioxide (SiO2) with Manganese/Iron inclusions
Quartz-veined Jasper
Microcrystalline quartz (SiO2) with quartz veins
Chert (Flint)
Silicon Dioxide (SiO2)
Chalcedony (River Agate)
Silicon Dioxide (SiO2)
Carnelian
Carnelian (Cryptocrystalline Quartz, SiO2)
Chalcedony (Agate)
Chalcedony (Cryptocrystalline Quartz, SiO2)
Chert (Flint Nodules)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Flint)
Microcrystalline or cryptocrystalline Quartz (SiO2)
Chert / Chalcedony Nodule
Silicon Dioxide (SiO2)
Chalcedony Pebble
Silicon Dioxide (SiO2)
Chert (Arrowhead Point)
Microcrystalline Quartz (SiO2)