Chert / Fossiliferous Limestone
Sedimentary Chert (often containing CaCO3 or SiO2 replacements)
Category
Browse sedimentary rock (technically chert, a microcrystalline quartz) specimens identified by the Rock Identifier community.
Chert / Fossiliferous Limestone
Sedimentary Chert (often containing CaCO3 or SiO2 replacements)
Yellow Chalcedony (Agate)
Silicon Dioxide (SiO2)
Chert (Jasper/Chalcedony)
Silicon dioxide (SiO2) - Microcrystalline quartz
Chert (Arrowhead Preform)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Chert (variously identified as Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Commonly known as Flint or Jasper when pigmented)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (variously Flint or Jasper gravel)
Microcrystalline or cryptocrystalline Quartz (SiO2)
Chert (variously known as Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (containing Flint nodules)
Microcrystalline or cryptocrystalline Quartz (SiO2)
Chert (Nodule)
Silicon Dioxide (SiO2)
Chert (variations include Flint or Jasper)
Silicon Dioxide (SiO2)
Chert (Quartz Variety)
Microcrystalline Silica (SiO2)
Banded Chert (Jasper)
Silicon Dioxide (SiO2)
Chert (Flint)
Microcrystalline Quartz or Cryptocrystalline Silica (SiO2)
Chert (Nodule)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Chert / Flint
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Chert (Flint)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Chert (Flint)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Chert / Jasper
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Chert (Yellow/Brown Jasper)
Silicon Dioxide (SiO2)
Quartz Geode (partially filled/solid)
Silicon Dioxide (SiO2)
Banded Chert (Jasper)
Silicon Dioxide (SiO2)
Jasper (Chert)
Silicon Dioxide (SiO2) with iron oxide impurities
Opal
Hydrated Amorphous Silica (SiO2·nH2O)
Mookaite Jasper
Silicified Radiolarite (SiO2)
Fossiliferous Chert (with Brachiopod or Mollusk fragments)
Silicon dioxide (SiO2) with Calcium Carbonate (CaCO3) inclusions
Jasper
Silicon Dioxide (SiO2)
Chert / Yellow Jasper
Silicon Dioxide (SiO2)
River Pebble (Quartzite)
Quartzite (SiO2)
Agate (specifically a Yellow/Honey Agate)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Chert (Jasper variety)
Silicon Dioxide (SiO2)
Yellow Jasper (Chert)
Silicon Dioxide (SiO2) with iron inclusions
Jasper and Agate
Microcrystalline Quartz (SiO2)
Chert (Common Opal/Jasper variety)
Silicon Dioxide (SiO2)
Satin Spar (Selenite)
Gypsum (CaSO4·2H2O)
Chert (often called Flint)
Chert (Microcrystalline Silicon Dioxide, SiO2)
Red Jasper (with Quartz and Chert)
Silicon Dioxide (SiO2) with Iron Oxide inclusions
Jasper
Chert (Silica: SiO2)
Clear Quartz (Rock Crystal)
Quartz (SiO₂)
Chert (Jasper variety)
Silicon Dioxide (SiO2)
Chert (specifically Flint or Nodular Chert)
Silicon Dioxide (SiO2)
Chert (with Iron Staining)
Microcrystalline or Cryptocrystalline Quartz (SiO2)