Sedimentary (Jasper), Mineral (Aquamarine)

Chert (often called Flint when dark)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Conglomerate

Conglomerate (clastic sedimentary rock)

Dalmatian Stone (Dalmatian Jasper)

Peralkaline Quartz-Feldspar Porphyry with Arfvedsonite

Chakra Stone Tower (Composite Multi-Mineral)

Crystalline Silicon Dioxide composite (SiO2) with various inclusions

Jasper or Agate-bearing Chert

Silicon Dioxide (SiO2) - Cryptocrystalline Quartz

Ocean Jasper

Orbicular Jasper (Silicon Dioxide, SiO2)

Ocean Jasper

Orbicular Jasper (varietal of SiO2 with impurities)

Tumbled Stone Collection (featuring Tiger's Eye, Rose Quartz, and Moss Agate)

Mixed Silicates and Oxides (predominantly SiO2 group minerals)

Jasper (specifically variegated or swamp jasper beads)

Silicon Dioxide (SiO2) - Cryptocrystalline Quartz

Chert (Flint)

Silicon Dioxide (SiO2)

Chert (Chert Nodule with Cortex)

Microcrystalline Quartz (SiO2)

Chert (specifically var. Flint or Jasper-rich Breccia)

Microcrystalline Quartz (SiO2)

Chert (variant Flint or Jasper)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (and Flint)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (Yellow Jasper/Flint)

Microcrystalline Quartz (SiO2)

Chert (Iron-stained)

Chert (SiO2)

Chert (and Flint)

Silicon dioxide (SiO2)

Bloodstone

Heliotrope (cryptocrystalline Quartz, SiO2 with inclusions of Hematite)

Chert (Jasper variety)

Silicon Dioxide (SiO2)

Chert (Arrowhead variety)

Chert (SiO2)

Red Jasper (Tumbled)

Silicon Dioxide (SiO2) with iron oxide inclusions

Chert (Flint nodule)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (specifically tan/pink variety)

Silicon Dioxide (SiO2)

Jasper with Quartz inclusions

Silicon Dioxide (SiO2) - Microcrystalline Chalcedony

Jasper with Hematite inclusions

Silicon Dioxide (SiO2) with Ferric Oxide (Fe2O3)

Yellow Jasper (Chert variant)

Silicon Dioxide (SiO2)

Red Jasper (Tumbled)

Silicon Dioxide (SiO2) with iron oxide inclusions

Riverstone Jasper (Chalcedony)

Silicon Dioxide (SiO2)

Chert (Iron-Stained)

Microcrystalline Silica (SiO2)

Banded Iron Formation (BIF)

Banded Iron Formation

Yellow Chert or Jasper

Silicon Dioxide (SiO2)

Chert (Common Opal/Jasper variety)

Silicon Dioxide (SiO2)

Botryoidal Chalcedony

Chalcedony (SiO2)

Jasper (Iron-stained Quartzite/Chert)

Silicon Dioxide (SiO2) with iron oxide inclusions

Chert (Yellow Jasper/Agatized Chert)

Microcrystalline Quartz (SiO2)

Porphyritic Rhyolite (Birdseye Rhyolite)

Rhyolite (Porphyritic texture)

Dalmatian Stone

Dalmatian Jasper (Aplitic Perthite)

Chert (variously Flint or Jasper gravel)

Microcrystalline or cryptocrystalline Quartz (SiO2)

Conglomerate

Conglomerate (a clastic sedimentary rock)

Chert (Flint)

Chert (SiO2)

Chert (and associated Flint)

Silicon Dioxide (SiO2)

Chert (variously known as Flint or Jasper)

Silicon Dioxide (SiO2) - Microcrystalline Quartz