Anthropogenic (Human Made) Sedimentary Like Material

Chert (Flint Nodules)

Chert (Cryptocrystalline variety of Quartz, SiO2)

Chert (Pink Chert / Flint)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Limonite (Iron Stone Concretion)

Limonite (Hydrous Iron Oxide) - FeO(OH)·nH2O

Angel Aura Quartz (Treated Clear Quartz)

Silicon Dioxide (SiO2) coated with Vaporized Silver and Platinum

Amber Chert (Jasper)

Microcrystalline Quartz (SiO2)

Chert (Jasper/Common Opal mix)

Microcrystalline Quartz (SiO2)

Chert (specifically Flint or Common Opal)

Silicon Dioxide (SiO2)

Chert (Iron-stained)

Chert (Microcrystalline and Cryptocrystalline Quartz, SiO2)

Chert (Iron-stained or Dark)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Limonite

Limonite (Hydrated iron(III) oxide-hydroxide) FeO(OH)·nH2O

Chert (Red/Pink Jasper subtype)

Silicon Dioxide (SiO2)

Chert (Flint)

Microcrystalline Quartz (SiO2)

Chert / Flint

Silicon Dioxide (SiO2)

Chert (often called Flint or Chalcedony Jasper)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (Jasper variety)

Silicon Dioxide (SiO2)

Chert (specifically Flint or Jasper variant)

Microcrystalline silica (SiO2)

Coquina / Fossiliferous Limestone

Coquina (composed primarily of Calcium Carbonate / CaCO3)

Chert (specifically Yellow/Brown Chert or Flint)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (Jasper variety)

Silicon Dioxide (SiO2) with iron oxide impurities

Chert (Jasper/Agate variety)

Microcrystalline quartz (SiO2)

Chert (Jasper variety)

Silicon Dioxide (SiO2)

Chert (Jasper variety)

Silicon Dioxide (SiO2)

Chert (specifically Red Chert / Jasper nodule)

Silicon dioxide (SiO2)

Limonite-stained Chert

Silicon Dioxide (SiO2) with Hydrated Iron Oxide (FeO(OH)·nH2O)

Chert (Yellow Jasper variant)

Microcrystalline quartz (SiO2)

Chert (Nodular)

Cryptocrystalline Quartz (SiO2)

Chert (Green Jasperiod)

Chert (Microcrystalline Quartz, SiO2)

Chert (Flint variety)

Silicon Dioxide (SiO2)

Chert (Flint)

Microcrystalline Quartz (SiO2)

Chert (Flint)

Cryptocrystalline Quartz (SiO2)

Chert (specifically Flint or Jasper variant)

Microcrystalline or Cryptocrystalline Silicon Dioxide (SiO2)

Chert (varietal: Flint/River Pebble)

Cryptocrystalline Quartz (SiO2)

Chert

Chert (Microcrystalline Quartz, SiO2)

Chert (specifically a Chert Nodule or Flint)

Cryptocrystalline Quartz (SiO2)

Chert (Quartz)

Microcrystalline Silica (SiO2)

Chert (Chert Nodule)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (Iron-stained)

Microcrystalline Quartz (SiO2)

Chert (and Chalcedony)

Microcrystalline Quartz (SiO2)

Chert (Cherty Flint)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Banded Chert

Microcrystalline Quartz (SiO2)

Chert (Jasper/Flint variety)

Microcrystalline Quartz (SiO2)

Chert (specifically Flint)

Silicon Dioxide (SiO2)