Sedimentary (Physico Chemical Precipitate)

Chert (Jasper/Flint variety)

Microcrystalline quartz (SiO2)

Chert (Nodule)

Microcrystalline Quartz (SiO2)

Chert (Basanite / Flint)

Microcrystalline silica (SiO2)

Chert (often called Flint)

Cryptocrystalline Quartz (SiO2)

Chert (variations include Flint)

Chert (Silicon Dioxide, SiO2)

Bauxite

Bauxite (Mixture including Gibbsite Al(OH)3, Boehmite γ-AlO(OH), and Diaspore α-AlO(OH))

Chert (Flint variety)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Ooids (Oolites)

Ooids (composed of Calcium Carbonate / CaCO3)

Green Chert

Microcrystalline Quartz (SiO2)

Chert (Jasper variety)

Silicon Dioxide (SiO2)

Chert (Jasper/Flint variety)

Microcrystalline Quartz (SiO2)

Chert (Yellow or Tan variety)

Microcrystalline or cryptocrystalline Quartz (SiO2)

Chert (Arrowhead/Tool Grade)

Microcrystalline Quartz (SiO2)

Chert (specifically as a lithic artifact/projectile point)

Chert (Silicon dioxide, SiO2)

Chert (Iron-stained)

Microcrystalline quartz (SiO2)

Chert (Iron-stained)

Microcrystalline Quartz (SiO2)

Chert (Flint)

Microcrystalline Quartz (SiO2)

Dalmation Stone (Dalmation Jasper)

Peralkaline rock (primarily Feldspar and Quartz with Arfvedsonite spots)

Chert (Jasper/Flint variation)

Chert (SiO2)

Chert (Flint variety)

Microcrystalline or cryptocrystalline Quartz (SiO2)

Chert (and/or River Pebble)

Microcrystalline quartz (SiO2)

Chert (specifically Flint or Jasper variant)

Microcrystalline quartz (SiO2)

Banded Calcite (often sold as 'Mexican Onyx')

Calcite (Calcium Carbonate - CaCO3)

Chert (Jasper/Flint variety)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (Jasper variety)

Silicon Dioxide (SiO2)

Chert (specifically White Chert or Novaculite)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Chert (Basanite / Flint)

Microcrystalline Quartz (SiO2)

Chert (Jasper/Flint variety)

Microcrystalline silicon dioxide (SiO2)

Black Mountain Stone (Seiryu Stone)

Limestone with Calcite veins (CaCO3)

Chert (specifically Flint or Chalcedony nodule)

Microcrystalline Quartz (SiO2)

Chert (and Flint variant)

Microcrystalline or cryptocrystalline Quartz (SiO2)

Chert (Gravel)

Microcrystalline silica (SiO2)

Chert (variously Flint)

Chert (Microcrystalline or cryptocrystalline Quartz, SiO₂)

Chert (and Flint variant)

Silicon Dioxide (SiO2)

Chert (or Flint)

Mocrocrystalline Quartz (SiO2)

Chert (Jasper/Flint variety)

Microcrystalline Quartz (SiO2)

Chert (Tan/Yellow variety)

Microcrystalline Quartz (SiO2)

Green Chert (Jasper)

Silicon Dioxide (SiO2)

Chert (and Jasper pebble)

Microcrystalline Silica (SiO2)

Red Jasper

Jasper (Silicate Mineral - SiO2)

Chert (White Chert / Flint)

Microcrystalline or Cryptocrystalline Silicon Dioxide (SiO2)

Chert (Flint)

Chert (Silicon Dioxide, SiO2)