Sedimentary (Chemically Precipitated)

Chert (Arrowhead Preform)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Chert (specifically Flint or Jasper variant)

Microcrystalline or Cryptocrystalline Silicon Dioxide (SiO2)

Chert (Jasper/Flint variant)

Silicon Dioxide (SiO2)

Chert (Iron-stained)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Jasper

Silicon Dioxide (SiO2)

Yellow Jasper

Microcrystalline Quartz with Iron Oxide (SiO2)

Chert (specifically Jasper or Flint variety)

Cryptocrystalline Quartz (SiO2)

Banded Chert

Microcrystalline Quartz (SiO2)

Chert (Jasper/Agate variety)

Cryptocrystalline Quartz (SiO2)

Red Jasper (Mahogany Obsidian variant similarity)

Silicon Dioxide (SiO2) with iron oxide inclusions

Chert (Jasper variety)

Silicon Dioxide (SiO2)

Chert (Chalcedony/Agate)

Microcrystalline Quartz (SiO2)

Chert (Jasper/Ironstone variety)

Silicon Dioxide (SiO2) with iron oxide inclusions

Chert (Jasper/Flint variety)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (Jasper/Quartzite Pebble)

Silicon Dioxide (SiO2)

Siltstone/Sandstone (possibly Wonderstone or Picture Sandstone)

Clastic Sedimentary Rock (primarily SiO2 with Iron Oxide inclusions)

Chert (Flint)

Microcrystalline Quartz (SiO2)

Flint

Microcrystalline Quartz (SiO2)

Flint / Chert

Microcrystalline Quartz (SiO2)

Jasper

Silicon Dioxide (SiO2) microcrystalline quartz

Chert

Microcrystalline quartz (SiO2)

Flint

SiO2 (Cryptocrystalline Quartz)

Flint

SiO2 (Cryptocrystalline Quartz)

Chert (or Jasper)

Microcrystalline Quartz (SiO2)

Chert

Microcrystalline quartz (SiO2)

Chert (or Flint)

Microcrystalline quartz (SiO2)

Bentonite Clay

Montmorillonite silicate ((Na,Ca)0.33(Al,Mg)2Si4O10(OH)2·nH2O)

Quartz Sand

Silicon Dioxide (SiO2)

Chert / Flint

Silicon dioxide (SiO2)

Chert

Chert (SiO2)

Chert (Flint)

Chert (Microcrystalline or cryptocrystalline Quartz - SiO2)

Chert (Flint)

Silicon Dioxide (SiO2)

Chert (Jasper)

Cryptocrystalline Quartz (SiO2)

Bauxite

Alumina-rich rock (consisting of Gibbsite, Boehmite, and Diaspore)

Green Chert

Microcrystalline Quartz (SiO2)

Banded Chert

Silicon Dioxide (SiO2)

Laterite (Iron-rich bauxite or Gossan)

Ferricrete (Fe2O3·nH2O)

Chert (Flint)

Silicon Dioxide (SiO2)

Chert

Chert (Microcrystalline Quartz, SiO2)

Bauxite

Bauxite (Al(OH)3, AlO(OH))

Chert (Jasper variation)

Microcrystalline Quartz (SiO2)

Chert (Basanite)

Chert (Microcrystalline SiO2)