Chert Pebble
Microcrystalline Quartz (SiO2)
Category
Browse sedimentary (formed from silica deposits) specimens identified by the Rock Identifier community.
Chert Pebble
Microcrystalline Quartz (SiO2)
Jasper
Silicon dioxide (SiO2) with iron oxide inclusions
Chert or Jasper
Microcrystalline Quartz (SiO2)
Jasper
Microcrystalline Quartz (SiO2)
Amber
Fossilized Tree Resin
Tumbled carnelian
Carnelian, a translucent chalcedony variety of quartz (SiO₂), colored mainly by iron oxides
Chert (Red Jasper variant)
Microcrystalline Quartz (SiO2)
Rounded flint or chert pebble
Microcrystalline quartz (SiO₂), commonly chalcedony with possible impurities
Agate
Silicon Dioxide (Chalcedony), SiO2
Chalcedony (Agate/Jasper mix)
Cryptocrystalline Quartz (SiO2)
Jasper Pebble
Microcrystalline Quartz (SiO2)
Chalcedony
Silicon Dioxide (SiO2)
Red Jasper
Silicon dioxide (SiO2) with iron inclusions
Grey Banded Agate
Silicon Dioxide (SiO2)
Agate
Silicon Dioxide (Chalcedony), SiO2
White Agate / Chalcedony
Silicon Dioxide (SiO2)
Jasper
Microcrystalline quartz (SiO2)
Chert (Quartz)
Silicon Dioxide (SiO2)
Chert (Jasper/Agate variety)
Microcrystalline Quartz (SiO2)
Yellow Jasper (Chert variant)
Silicon Dioxide (SiO2) with iron oxide inclusions
Quartz Pebble
Silicon Dioxide (SiO2)
Chert/Flint
Silicon dioxide (SiO2)
Jasper
Microcrystalline Quartz (SiO2)
Chert (Basanite)
Chert (Microcrystalline SiO2)
Botryoidal Chalcedony (Agate)
Silicon Dioxide (SiO2)
Carnelian Agate
Silicon Dioxide (SiO2) with Iron Oxide inclusions
Chert (Arrowhead Artifact)
Chert (SiO2)
Chert (Flint)
Silicon Dioxide (SiO2)
Quartz (Common Quartz/Citrine-toned)
Silicon Dioxide (SiO2)
Jasper
Silicon dioxide (SiO2)
Jasper (Green Jasper/Heliotrope variety)
Silicon Dioxide (SiO2)
Clear Quartz Crystal
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Chalcedony (Carnelian Agate)
Cryptocrystalline quartz (SiO2) with Iron Oxide inclusions
Breciated Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Jasper Pendant
Silicon dioxide (SiO2) with impurities
Chert (often called Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Fancy Jasper
Jasper (Cryptocrystalline Quartz, SiO2)
Jasper / Agate (Chalcedony)
Silicon dioxide (SiO2)
Red Brecciated Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
Jasper
Jasper (Silicon Dioxide, SiO2)
Jasper with Iron Inclusions
Silicon Dioxide (SiO2) with Hematite/Goethite