Mineral (Specifically A Cryptocrystalline Variety Of Quartz)

Mixed Chalcedony and Jasper Bracelet (possibly 'Ocean Jasper' or similar banded variety for brown beads, and blue/grey Chalcedony for the translucent beads)

Chalcedony (SiO2), Jasper (SiO2 with impurities)

Fancy Jasper

Silicon Dioxide (SiO₂)

Banded Carnelian

Carnelian (Silicon Dioxide / SiO2)

Blue Lace Agate

Cryptocrystalline variety of Quartz (SiO2)

Red Jasper (with Quartz)

Silicon Dioxide (SiO2) with Hematite inclusions

Yellow Jasper (Chert)

Silicon Dioxide (SiO2) with iron oxide inclusions

Agate Nodules

Cryptocrystalline Quartz (SiO2)

Chert (Nodule fragment)

Silicon Dioxide (SiO2)

Quartz (Agate/Chalcedony variety)

Silicon Dioxide (SiO2)

Banded Agate (specifically Carnelian Agate)

Silicon Dioxide (SiO2) - Cryptocrystalline Quartz

Chert

Microcrystalline quartz (SiO2)

Chert (Flint)

Microcrystalline Quartz (SiO2)

Red Agate

Agate (Cryptocrystalline variety of Quartz, SiO2)

Chert / Jasper

Microcrystalline Quartz (SiO2)

Mixed collection of minerals and rocks (Jasper, Carnelian, Granite, and Quartz)

Silicon Dioxide (SiO2) with varying impurities for silicates and igneous aggregates

Chalcedony (Agate/Carnelian)

Cryptocrystalline Silicon Dioxide (SiO2)

Leopard Skin Jasper

Chalcedony (cryptocrystalline Quartz)

Banded Agate

Chalcedony (cryptocrystalline variety of Quartz), SiO2

Sardonyx Cameo

Silicon Dioxide (SiO2) - variety Cryptocrystalline Quartz

Chalcedony (specifically Agate or Carnelian variety)

Cryptocrystalline Silica (SiO2)

Chert (Flint Nodules)

Microcrystalline Quartz (SiO2)

Chert / Flint

Cryptocrystalline Quartz (SiO2)

Banded Agate (specifically Carnelian Agate slice)

Chalcedony (cryptocrystalline variety of Quartz), SiO2

Chert (Jasper variety)

Chert (SiO2)

Agate (specifically a small Chalcedony nodule)

Agate (Cryptocrystalline variety of Quartz, SiO2)

Ocean Jasper (Orbicular Jasper)

Silicon Dioxide (SiO2) - Variety of Chalcedony/Quartz

Milky Quartz

Silicon Dioxide (SiO2)

Flint

SiO2 (Cryptocrystalline Quartz)

Jasper (or possibly Agate/Chalcedony) beads

SiO2 (Silicon Dioxide)

Banded Agate (specifically Botswana Agate or Water-line Agate)

Chalcedony (cryptocrystalline variety of Quartz), SiO2

Flint

SiO2 (Cryptocrystalline Quartz / Chert)

Chert / Jasper

Microcrystalline Quartz (SiO2)

Chert (Tripolitic Chert / Flint Nodules)

Microcrystalline Quartz (SiO2)

Chert (and Flint)

Silicon Dioxide (SiO2)

Agate (Carnelian / Chalcedony)

Silicon Dioxide (SiO2)

Polished green-and-white jasper (likely ocean jasper or orbicular jasper)

Microcrystalline quartz/chalcedony (SiO₂) with chlorite, epidote, calcite, and iron-oxide inclusions

Yellow Jasper

Silicon Dioxide (SiO2) - Impure Cryptocrystalline Quartz

Yellow Jasper

Cryptocrystalline Quartz (SiO2)

Chert (Jasper variety)

Microcrystalline Quartz (SiO2)

Agate (specifically a Blue Agate Geode Slice)

Chalcedony (cryptocrystalline variety of Quartz); SiO2

Banded Agate (specifically Eye Agate / Chalcedony)

Agate (Cryptocrystalline variety of Quartz, SiO2)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)