Organic (Anthropological Artifact)

Naga Silver-Inlaid Ebony and Bone/Horn Beads

Diospyros (Ebony) or Keratin (Horn) with Silver/White-Metal Inlay

Chert (Arrowhead Artifact)

Microcrystalline or cryptocrystalline Quartz (SiO2)

Chert (Arrowhead Preform or Point)

Chert (Microcrystalline Quartz, SiO2)

Chert (Nodule)

Microcrystalline Quartz (SiO2)

Chert (Arrowhead Artifact)

Chert (SiO2)

Chert (Jasper/Chalcedony)

Microcrystalline Silica (SiO2)

Chert (Nodule)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Chert (Flint/Jasper variety)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (Flint)

Microcrystalline Opaline Silica (SiO2)

Chert (Jasper/Flint variety)

Silicon Dioxide (SiO2)

Chert (specifically Flint or Common Chert)

Silicon Dioxide (SiO2)

Chert (often called Flint)

Microcrystalline to cryptocrystalline quartz (SiO2)

Chert (often called Flint when dark or worked)

Cryptocrystalline silica (SiO2)

Chert (specifically Flint Arrowhead)

Silicon dioxide (SiO2) - Microcrystalline Quartz

Chert (specifically Flint or Jasper variant)

Microcrystalline or Cryptocrystalline Silicon Dioxide (SiO2)

Chert (Nodule)

Chert (Silicon Dioxide, SiO2)

Chert (specifically Flint or Novaculite variant)

Chert (Microcrystalline Quartz, SiO2)

Chert (often called Flint or Jasper)

Silicon Dioxide (SiO2)

Chert (specifically as a lithic artifact/projectile point)

Chert (Silicon dioxide, SiO2)

Chert (often called Flint or Jasper when red)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Chert (often called Flint when dark)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (Arrowhead Preform or Flake)

Microcrystalline Quartz (SiO2)

Chert (Green variety)

Chert (Silicon Dioxide, SiO2)

Chert (Arrowhead variety)

Chert (SiO2)

Chert (specifically Flint or Jasper variant)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (often found as Flint)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (Flint)

Chert (Microcrystalline Quartz, SiO2)

Chert (Arrowhead/Tool variety)

Microcrystalline Quartz (SiO2)

Chert

Microcrystalline Quartz (SiO2)

Chert (White Chert / Flint)

Microcrystalline or Cryptocrystalline Silicon Dioxide (SiO2)

Chert (Tan/Buff Chert)

Microcrystalline Quartz (SiO2)

Chert (Iron-Stained)

Microcrystalline or cryptocrystalline Quartz (SiO2)

Turquoise and Red Coral

CuAl6(PO4)4(OH)8·4H2O (Turquoise) and Corallium rubrum (Red Coral)

Chert (Arrowhead/Artifact Fragment)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert

Microcrystalline Quartz (SiO2)

Chert (and Flint)

Chert (SiO2)

Chert (Jasper variation)

Microcrystalline Quartz (SiO2)

Moqui Marbles

Iron Oxide Concretion (Hematite/Goethite)

Chert / Flint

Chert (SiO2)

Flint

Chert (Silicon dioxide, SiO2)

Chert (Jasper focus)

Silicon dioxide (SiO2) - Microcrystalline Quartz

Chert Arrowhead (Projectile Point)

Microcrystalline Quartz (SiO2)