Sedimentary (Jasper), Mineral (Aquamarine)

Dalmatian Jasper

Peralkaline rhyolite with Arfvedsonite inclusions

Bloodstone (Heliotrope)

Silicon Dioxide (SiO2) with iron silicate and iron oxide inclusions

Red Jasper

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Jasper and Basalt Mix (Dark Chert/Basalt River Pebble)

Silicon Dioxide (SiO2) or Mafic extrusive igneous rock

Chert (Tan/Brown variety)

Chert (Silicon Dioxide, SiO2)

Chert (Yellow Jasper variant)

Microcrystalline Quartz (SiO2)

Chert (Iron-Stained)

Microcrystalline or cryptocrystalline Quartz (SiO2)

Chert (Jasper/Flint variant)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Chert (specifically Red Chert or Jasper)

Microcrystalline Quartz (SiO2)

Chert (Field Stone)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (variations include Flint or Jasper)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (and/or Flint)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (Jasper variety)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Banded Chert (Jasper)

Silicon Dioxide (SiO2)

Chalcedony

Chalcedony (a microcrystalline variety of Quartz, SiO2)

Chert (Nodular or Massive Variety)

Cryptocrystalline Quartz (SiO2)

Chert (and Flint variant)

Silicon Dioxide (SiO2)

Chert (Jasper/Flint variety)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Yellow Chert or Jasper

Microcrystalline Quartz (SiO2)

Mookaite (Mookaite Jasper)

Silicified Radiolarite (SiO2 with iron oxides)

Red Chert (Jasper)

Microcrystalline Quartz (SiO2)

Chert (Jasper transition)

Microcrystalline Quartz (SiO2)

Stromatolite (Jasper-replaced)

Fossilized Stromatolite (Cyanobacteria / Cryptozon / Silica SiO2)

Chert (Jasper variation)

Silicon Dioxide (SiO2)

Chert (Jasper variation)

Silicon Dioxide (SiO2)

Chert (Jasper variety)

Silicon Dioxide (SiO2)

Chert (Jasper variety)

Silicon Dioxide (SiO2)

Chert (Jasper-rich)

Microcrystalline/Cryptocrystalline Quartz (SiO2)

Banded Chert (Jasper)

Silicon Dioxide (SiO2)

Chert (Jasper variety)

Cryptocrystalline Quartz (SiO2)

Chert (Jasper variety)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Green Chert (Jasper)

Silicon Dioxide (SiO2)

Chert (and Jasper pebble)

Microcrystalline Silica (SiO2)

Chert (Jasper variety)

Silicon Dioxide (SiO2)

Red Jasper (River pebble)

Jasper (Silicon Dioxide, SiO2 plus iron oxide impurities)

Carnelian

Carnelian (Silicon Dioxide, SiO2)

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2)

Chert (specifically Gray/Banded Chert)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Jasper (Petrified Wood variant)

Silicon Dioxide (SiO2) with iron oxide inclusions

Chert (Jasper/Flint variety)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (Field-collected Arrowhead-shaped Fragment)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (Smoky variety)

Microcrystalline Quartz (SiO2)