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

Chert (Jasper influence)

Microcrystalline Quartz (SiO2)

Chert (variations include Flint/Novaculite)

Chert (formula: SiO2)

Green Aventurine

Quartzite with Fuchsite inclusions (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)

Chert (often called Flint)

Silicon Dioxide (SiO2)

Ferruginous Sandstone (with possible Epidote/Chlorite coloring)

Sandstone (SiO2 dominated with Fe2O3 staining)

Shale or Argillite

Shale (fine-grained clastic sedimentary rock) or Argillite (low-grade metamorphic rock derived from shale)

Pink Quartzite

Quartzite (SiO2 with iron oxide inclusions)

Chert (with Limestone matrix)

Chert (Silica: SiO2)

Chert (Iron-stained or Dark)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Green Aventurine

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

Chert (variations include Flint/Jasper)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

White Quartz (Milky Quartz)

Quartz (Silicon Dioxide, SiO2)

Sandstone (Calcareous or Ferruginous)

Clastic sedimentary rock (SiO2 with CaCO3 or Fe2O3 cement)

Chert (Flint)

Chert (Silicon Dioxide, SiO2)

Chert (specifically a flint nodule component)

Microcrystalline quartz (SiO2)

Quartzite

Quartzite (SiO2 principal component)

Sandstone (Ferruginous)

Arenite with Iron-Oxide Cement

Chert (and/or River Pebble)

Microcrystalline quartz (SiO2)

Chert (Flint variety)

Microcrystalline or cryptocrystalline Quartz (SiO2)

Quartz Pebble

Silicon Dioxide (SiO2)

Chert (often called Flint or Agate nodule)

Cryptocrystalline Quartz (SiO2)

Chert (specifically Flint or Common Chert)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Sandstone (Quartzose)

Arenite (primarily SiO2)

Chert (often called Flint)

Microcrystalline Quartz (SiO2)

Green Aventurine

Silicon Dioxide (Quartz) with inclusions of Fuchsite mica; Chemical formula: SiO2 + K(Al,Cr)2AlSi3O10(OH)2

Sandstone (with carbonaceous plant fragments)

Arenite (composed primarily of SiO2)

Chert (variant Flint)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (Jasper/Flint variety)

Microcrystalline Quartz (SiO2)

Aquamarine

Beryl (Be3Al2Si6O18), specifically the blue-green variety

Chert (specifically Gray/Tan Chert Node)

Microcrystalline Quartz (SiO2)

Chert (and Limestone)

Chert (consisting of Microcrystalline Quartz, SiO2)

Chert (Flint)

Microcrystalline Opaline Silica (SiO2)

Chert (variations include Flint or Jasper)

Cryptocrystalline Quartz (SiO2)

Chert (Jasper)

Silicon Dioxide (SiO2)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Chert (Jasper variety)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Chert (Pink Jasper)

Microcrystalline Quartz (SiO2)

Chert (specifically Flint or Gray Chert)

Silicon Dioxide (Microcrystalline Quartz), SiO2

Chert / Jasper

Microcrystalline Quartz (SiO2)

Banded Chert / Flint

Silicon dioxide (SiO2)

Chert (Flint variety)

Microcrystalline Quartz (SiO2)

Chert (Chert / Flint)

Silicon Dioxide (SiO2)