Chert (Flint)
Silicon Dioxide (SiO2)
Category
Browse anthropogenic sedimentary style organic solid specimens identified by the Rock Identifier community.
Chert (Flint)
Silicon Dioxide (SiO2)
Chert (varietal: Flint/Jasper mix)
Hydrous Silica (SiO2)
Chert / Flint Nodules
Chert (Cryptocrystalline variety of Quartz, SiO2)
Chert (concretionary/nodular variant)
Microcrystalline Quartz (SiO2) with possible fossil or mineral inclusions
Chert (Yellow Jasper/Agatized Chert)
Microcrystalline Quartz (SiO2)
Chert Nodules in Limestone
Cryptocrystalline Quartz (SiO2) within Calcium Carbonate (CaCO3)
Fossiliferous Limestone
Limestone (CaCO3 - Calcium Carbonate)
Shale (or Mudstone)
Siltstone/Argillite (composed mainly of clay and silt-sized particles)
Amber
Succinate (Fossilized Resin)
Shale
Shale (fine-grained clastic sedimentary rock)
Fossiliferous Chert
Silicon Dioxide (SiO2) with fossil inclusions
Chert (Flint)
Microcrystalline Quartz (SiO2)
Fossil Shark Tooth
Selachii fossil
Banded Limestone
Calcareous sedimentary rock (CaCO3)
Fossiliferous Sedimentary Rock
Sedimentary Rock with Invertebrate Fossil Imprint
Chert (Nodule)
Chert (Silicon Dioxide, SiO2)
Fossilized tooth, likely a mammalian tooth fragment
Indeterminate fossil tooth; possibly an ungulate or carnivoran tooth
Microcrystalline Quartz (Chert/Agate)
Silicon Dioxide (SiO2)
Chert (or Chalcedony)
Microcrystalline Quartz (SiO2)
Chert Nodule / Ironstone Concretion
Microcrystalline Quartz (SiO2) with Iron Oxides
Chert with Iron Inclusions
Microcrystalline Quartz (SiO2) with Hematite/Limonite
Jasper
Silicon Dioxide (SiO2) with impurities
Jasper
Silicon Dioxide (Microcrystalline Quartz), SiO2
Jasper
Microcrystalline Quartz (SiO2)
Chert (Jasper/Common Opal mix)
Microcrystalline Quartz (SiO2)
Green Jasper
Jasper (Silicates, SiO2)
Chert (Flint)
Silicon Dioxide (SiO2)
Chert (Jasper type)
Microcrystalline Quartz (SiO2)
Chert (Jasper/Flint variety)
Silicon Dioxide (SiO2)
Chert (Jasper type)
Microcrystalline Quartz (SiO2)
Limestone with Chert or Siltstone bands
Sedimentary carbonate rock (CaCO3) often with siliceous impurities
Chert (Flint)
Microcrystalline or cryptocrystalline Quartz (SiO2)
Chert (Yellow Jasper variant)
Silicon Dioxide (SiO2)
Chert (Yellow/Brown variety)
Chert (SiO2)
Chert / Jasper
Cryptocrystalline Silica (SiO2)
Jasper
Silicon dioxide (SiO2)
Chert (often called Flint when found in chalk)
Microcrystalline Quartz (SiO2)
Chert (Jasper/Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Ironstone Concretion / Limonite Node
Goethite and Limonite (FeO(OH) nH2O)
Chert (Flint)
Microcrystalline Quartz or Cryptocrystalline Silica (SiO2)
Chert (Fossiliferous)
Silicon dioxide (SiO2)
Fancy Jasper
Jasper (Cryptocrystalline Quartz, SiO2)