Chert (variations include Flint or Jasper)
Cryptocrystalline Quartz (SiO2)
Category
Browse sedimentary (cryptocrystalline quartz) specimens identified by the Rock Identifier community.
Chert (variations include Flint or Jasper)
Cryptocrystalline Quartz (SiO2)
Jasper (yellow/cream variety)
SiO₂ (Cryptocrystalline Quartz)
Banded Agate with Drusy Quartz
Cryptocrystalline Quartz (SiO2) with macrocrystalline Quartz
Chert (Chalcedony-rich sedimentary rock)
Cryptocrystalline Quartz (SiO2)
Chert
Cryptocrystalline Quartz (SiO2)
Blue Chalcedony
Cryptocrystalline Quartz (SiO2)
Chalcedony
Cryptocrystalline Quartz (SiO2)
Flint (Chert)
Cryptocrystalline Quartz (SiO2)
Blue Chalcedony
Cryptocrystalline Quartz (SiO2)
Tumbled quartz-like pebble
Quartz (silicon dioxide, SiO₂), possibly iron-stained chalcedony
Banded Chert
Cryptocrystalline Quartz (SiO2)
Chalcedony (Common Agate)
Cryptocrystalline Quartz (SiO2)
Chert (Vuggy or Chalcedony)
Cryptocrystalline Quartz (SiO2)
Chert (Flint)
Cryptocrystalline Quartz (SiO2)
Chalcedony Geode Fragment
Cryptocrystalline Quartz (SiO2)
Chalcedony (Agate/Quartz variety)
Cryptocrystalline Quartz (SiO2)
Brown Chert
Cryptocrystalline Quartz (SiO2)
Chalcedony (Yellow Agate)
Cryptocrystalline Quartz (SiO2)
Chert (Flint Nodules)
Cryptocrystalline Quartz (SiO2)
Chert / Flint
Cryptocrystalline Quartz (SiO2)
White Agate (resembling Bone Chalcedony)
Cryptocrystalline Quartz (SiO2)
Blue Chalcedony
Cryptocrystalline Quartz (SiO2)
Yellow Jasper
Cryptocrystalline Quartz (SiO2)
Chalcedony (Quartz Pebble)
Cryptocrystalline Quartz (SiO2)
Chert / Flint Nodule
Cryptocrystalline quartz (SiO2)
Orca Agate
Chalcedony (Microcrystalline Quartz, SiO2)
Chalcedony (Agate / Chert)
Silicon Dioxide (SiO2)
Chert (Jasper/Agate)
Cryptocrystalline Quartz (SiO2)
Agate and Chalcedony Beads
Cryptocrystalline Quartz (SiO2)
Chert (Flint)
Cryptocrystalline Quartz (SiO2)
Chert / Jasper
Cryptocrystalline Quartz (SiO2)
Chert Nodules or Concretion
Cryptocrystalline Quartz (SiO2)
Chalcedony
Cryptocrystalline Quartz (SiO2)
Banded Agate
Cryptocrystalline Quartz (SiO2)
Orange carnelian (likely tumbled chalcedony)
Carnelian, an orange variety of chalcedony (microcrystalline quartz, SiO₂)
Blue Chalcedony
Cryptocrystalline Quartz (SiO2)
Chert (Flint)
Cryptocrystalline Quartz (SiO2)
Chert Nodule (with Geode cavity)
Cryptocrystalline Quartz (SiO2)
Banded Agate
Cryptocrystalline Quartz (SiO2)
Chalcedony
Cryptocrystalline Quartz (SiO2)
Flint (Chert)
Cryptocrystalline Quartz (SiO2)
Flint (Chert)
Cryptocrystalline Quartz (SiO2)