Rock Identifier

Category

Artifact

Browse artifact specimens identified by the Rock Identifier community.

Chert (Flint) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Flint)

Microcrystalline Quartz (SiO2)

Chert (Likely Jasper) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Likely Jasper)

Microcrystalline Quartz (SiO2)

Chert (Cream Variety) (Microcrystalline silica (SiO2)) — sedimentary

Chert (Cream Variety)

Microcrystalline silica (SiO2)

Chert (often called Flint in dark varieties) (Microcrystalline or cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (often called Flint in dark varieties)

Microcrystalline or cryptocrystalline Quartz (SiO2)

Chert (Jasper/Chalcedony) (Microcrystalline Silica (SiO2)) — sedimentary

Chert (Jasper/Chalcedony)

Microcrystalline Silica (SiO2)

Chert Pebble (Chert (Microcrystalline Quartz, SiO2)) — sedimentary

Chert Pebble

Chert (Microcrystalline Quartz, SiO2)

Chert (Flint/Jasper variety) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Flint/Jasper variety)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert / Flint Pebble (Chert (SiO2)) — sedimentary

Chert / Flint Pebble

Chert (SiO2)

Chert (or Chalcedony) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (or Chalcedony)

Microcrystalline Quartz (SiO2)

Chert (Silicon dioxide (SiO2)) — sedimentary

Chert

Silicon dioxide (SiO2)

Chert (Flint Nodule) (Microcrystalline quartz (SiO2)) — sedimentary

Chert (Flint Nodule)

Microcrystalline quartz (SiO2)

Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Chert

Microcrystalline Quartz (SiO2)

Chert (Nodule) (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — sedimentary

Chert (Nodule)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Chert

Microcrystalline Quartz (SiO2)

Chert (Jasper variation) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Jasper variation)

Silicon Dioxide (SiO2)

Chert (Iron-Stained) (Microcrystalline Silica (SiO2)) — sedimentary

Chert (Iron-Stained)

Microcrystalline Silica (SiO2)

Chert (specifically Flint or Common Chert) (Silicon Dioxide (SiO2)) — sedimentary

Chert (specifically Flint or Common Chert)

Silicon Dioxide (SiO2)

Chert (Green variety) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Green variety)

Microcrystalline Quartz (SiO2)

Chert (Flint) Artifact (Silicon Dioxide (SiO2)) — sedimentary

Chert (Flint) Artifact

Silicon Dioxide (SiO2)

Chert (Flint Arrowhead) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Flint Arrowhead)

Microcrystalline Quartz (SiO2)

Chert Arrowhead (Chert (Cryptocrystalline variety of Quartz, SiO2)) — sedimentary

Chert Arrowhead

Chert (Cryptocrystalline variety of Quartz, SiO2)

Carved limestone architectural fragment (Limestone, predominantly calcite (CaCO₃), possibly weathered fossiliferous or oolitic limestone) — sedimentary

Carved limestone architectural fragment

Limestone, predominantly calcite (CaCO₃), possibly weathered fossiliferous or oolitic limestone

Obsidian Arrowhead Replica (or similar knapped stone) (Obsidian (volcanic glass) or Chert) — igneous

Obsidian Arrowhead Replica (or similar knapped stone)

Obsidian (volcanic glass) or Chert

Chert / Flint (or lithic artifact flake) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert / Flint (or lithic artifact flake)

Microcrystalline Quartz (SiO2)

Chert (often called Flint when dark or worked) (Cryptocrystalline silica (SiO2)) — sedimentary

Chert (often called Flint when dark or worked)

Cryptocrystalline silica (SiO2)

Chert (Arrowhead/Projectile Point) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Arrowhead/Projectile Point)

Microcrystalline Quartz (SiO2)

Vesicular iron-rich slag or weathered metallic ore (Indeterminate; likely Fe-oxide-bearing slag (magnetite/hematite) rather than a specific natural mineral) — mineral

Vesicular iron-rich slag or weathered metallic ore

Indeterminate; likely Fe-oxide-bearing slag (magnetite/hematite) rather than a specific natural mineral

Chert (Arrowhead Fragment) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Arrowhead Fragment)

Silicon Dioxide (SiO2)

Iron Slag (Anthropogenic Vitreous Silicate (Byproduct of Smelting)) — Mineral-like byproduct

Iron Slag

Anthropogenic Vitreous Silicate (Byproduct of Smelting)

Mineral-like byproduct

Chert (Arrowhead) (Chert (primarily Microcrystalline Silica, SiO2)) — sedimentary

Chert (Arrowhead)

Chert (primarily Microcrystalline Silica, SiO2)

Dark flint or chert fragment (Microcrystalline quartz (SiO₂), likely chert/flint) — sedimentary

Dark flint or chert fragment

Microcrystalline quartz (SiO₂), likely chert/flint

Goldstone (Aventurine glass) — mineral (man-made glass)

Goldstone

Aventurine glass

mineral (man-made glass)

Flint/chert projectile point (Microcrystalline quartz (SiO₂), archaeologically worked into a bifacial point) — sedimentary

Flint/chert projectile point

Microcrystalline quartz (SiO₂), archaeologically worked into a bifacial point

Worked flint/chert artifact (Microcrystalline quartz (chalcedony), SiO₂; likely a knapped flint or chert flake/core fragment) — sedimentary

Worked flint/chert artifact

Microcrystalline quartz (chalcedony), SiO₂; likely a knapped flint or chert flake/core fragment

Obsidian / Chert (Arrowhead Artifact) (Obsidian (volcanic glass, SiO2 with impurities)) — igneous

Obsidian / Chert (Arrowhead Artifact)

Obsidian (volcanic glass, SiO2 with impurities)

Chert (often called Flint in archaeological contexts) (Microcrystalline or cryptocrystalline Silica (SiO2)) — sedimentary

Chert (often called Flint in archaeological contexts)

Microcrystalline or cryptocrystalline Silica (SiO2)

Black Chert (Flint) (Silicon Dioxide (SiO2)) — sedimentary

Black Chert (Flint)

Silicon Dioxide (SiO2)

Chert (Jasper/Flint) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Jasper/Flint)

Silicon Dioxide (SiO2)

Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Chert

Microcrystalline Quartz (SiO2)

Chert (often called Flint or Jasper) (Silicon Dioxide (SiO2)) — sedimentary

Chert (often called Flint or Jasper)

Silicon Dioxide (SiO2)

Chert (specifically Flint or Jasper variant) (Microcrystalline or Cryptocrystalline Silicon Dioxide (SiO2)) — sedimentary

Chert (specifically Flint or Jasper variant)

Microcrystalline or Cryptocrystalline Silicon Dioxide (SiO2)

Chert (often called Flint when dark) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (often called Flint when dark)

Microcrystalline or Cryptocrystalline Quartz (SiO2)