Organic (If Resin) Or Synthetic (If Glass); Simulating Sedimentary Or Metamorphic (For Natural Stones)

Chert (Nodule)

Microcrystalline Quartz (SiO2)

Chert (including Flint and Jasper variants)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Red Jasper

Silicon Dioxide (SiO2) with Hematite impurities

Chert / Flint

Chert (Cryptocrystalline Silica, SiO2)

Chert (varieties include Flint and Jasper)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (White Chert / Flint)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Sandstone (with Iron Staining)

Clastic sedimentary rock (SiO2 with Fe2O3 impurities)

Chert (Yellow Jasper variant)

Microcrystalline or cryptocrystalline Quartz (SiO2)

Chert (often called Flint)

Chert (Cryptocrystalline Silica, SiO2)

Chert (Flint variety)

Microcrystalline context of Quartz (SiO2)

Chert (often called Flint)

Microcrystalline Quartz (SiO2)

Sandstone (Quartzose)

Arenite (composed mainly of SiO2)

Chert (and Fossilized Brachiopod shell)

Sedimentary Cryptocrystalline Quartz (SiO2)

Chert (varieties include Flint and Jasper)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Chert (Jasper/Flint variety)

Microcrystalline Quartz (SiO2)

Chert (Gravel)

Microcrystalline silica (SiO2)

Chert (often called Flint in dark varieties)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (specifically Yellow/Honey Jasper variety)

Cryptocrystalline Quartz (SiO2)

Chert (Yellow or Tan Chert)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (variant Flint/Jasper)

Microcrystalline Opaline Silica (SiO2)

Petrified Wood

Silicified Wood (SiO2)

Chert (with Quartz veins)

Microcrystalline Quartz (SiO2)

Chert (varieties include Flint and Jasper)

Silicon Dioxide (SiO2) / Microcrystalline Quartz

Chert (Jasper/Chalcedony)

Microcrystalline Quartz (SiO2)

Green Aventurine

Aventurine Quartz (SiO2 with Fuchsite inclusions)

Chert / River Pebble

Silicon Dioxide (SiO2)

Chert (specifically Flint)

Microcrystalline Quartz (SiO2)

Chert (Cherty Limestone or Flint)

Microcrystalline Silica (SiO2)

Chert (Field Stone)

Chert (Silicon Dioxide, SiO2)

Chert (Jasper variation)

Microcrystalline Quartz (SiO2)

Sandstone (Quartz Sandstone)

Arenite (primarily SiO2)

Chert (Iron-stained)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (Limestone-based)

Silicon dioxide (SiO2)

Red Jasper

Jasper (Silicon Dioxide with Iron Oxide inclusions, SiO2)

Green Aventurine

Quartz (Silicon Dioxide) with Fuchsite inclusions (SiO2 + K(Al,Cr)2(AlSi3O10)(OH)2)

Chert / Flint

Silicon Dioxide (SiO2)

Sandstone (Ferruginous)

Arenite with Iron-Oxide Cement

Chert (Field Flint)

Microcrystalline Quartz (SiO2)

Chert (Iron-rich)

Silicon Dioxide (SiO2) with Hematite (Fe2O3)

Chert (Common Opal/Jasper variety)

Microcrystalline Quartz (SiO2) with hydration

Quartzite

Quartzite (primarily SiO2)

Chert (Flint)

Silicon Dioxide (SiO2)