Rock Identifier

Category

Organic (Biological Organism)

Browse organic (biological organism) specimens identified by the Rock Identifier community.

Chert (specifically Jasper/Flint) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (specifically Jasper/Flint)

Microcrystalline Quartz (SiO2)

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

Chert (Nodule)

Microcrystalline Quartz (SiO2)

Chert (specifically Flint or Common Opal variant) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (specifically Flint or Common Opal variant)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

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

Chert / Flint

Microcrystalline Quartz (SiO2)

Jasper (Red Jasper) (Silicon Dioxide (SiO₂)) — sedimentary

Jasper (Red Jasper)

Silicon Dioxide (SiO₂)

Asphalt (Bituminous pavement) (Bituminous concrete / Asphalt) — Sedimentary (Anthropogenic)

Asphalt (Bituminous pavement)

Bituminous concrete / Asphalt

Sedimentary (Anthropogenic)

Petrified Wood (Silicified Wood (SiO2)) — sedimentary

Petrified Wood

Silicified Wood (SiO2)

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

Chert (Jasper/Flint variety)

Silicon Dioxide (SiO2)

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

Chert (Jasper variety)

Silicon Dioxide (SiO2)

Chert (varieties: Flint or Jasper) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (varieties: Flint or Jasper)

Microcrystalline Quartz (SiO2)

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

Chert (specifically Black Chert / Flint)

Silicon Dioxide (SiO2)

Chert (Yellow or Tan Chert) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Yellow or Tan Chert)

Silicon Dioxide (SiO2)

Chert (often called Flint for darker varieties) (Silicon Dioxide (SiO2) - Cryptocrystalline Quartz) — sedimentary

Chert (often called Flint for darker varieties)

Silicon Dioxide (SiO2) - Cryptocrystalline Quartz

Chert (often called Flint when in chalk or limestone) (Silicon Dioxide (SiO₂)) — sedimentary

Chert (often called Flint when in chalk or limestone)

Silicon Dioxide (SiO₂)

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

Chert (Jasper/Flint variety)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Banded Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Banded Chert

Microcrystalline Quartz (SiO2)

Petrified Wood (Silicified Wood (SiO2)) — sedimentary

Petrified Wood

Silicified Wood (SiO2)

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

Chert (River Pebble)

Microcrystalline Quartz (SiO2)

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

Chert (Chert / Flint)

Silicon Dioxide (SiO2)

Chert (Nodule) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Nodule)

Silicon Dioxide (SiO2)

Banded Chert (Silicon Dioxide (SiO2)) — sedimentary

Banded Chert

Silicon Dioxide (SiO2)

Chert (and Flint) (Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (and Flint)

Cryptocrystalline Quartz (SiO2)

Chert (Iron-stained) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Iron-stained)

Microcrystalline Quartz (SiO2)

Flint (or Chert) (Cryptocrystalline Quartz (SiO2)) — sedimentary

Flint (or Chert)

Cryptocrystalline Quartz (SiO2)

Chert (Iron-stained) (Chert (Silicon Dioxide, SiO2)) — sedimentary

Chert (Iron-stained)

Chert (Silicon Dioxide, SiO2)

Petrified Wood (Silicified Wood (SiO2)) — sedimentary

Petrified Wood

Silicified Wood (SiO2)

Chert (Microcrystalline silica (SiO2)) — sedimentary

Chert

Microcrystalline silica (SiO2)

Chert (Jasper/Agate variety) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Jasper/Agate variety)

Microcrystalline Quartz (SiO2)

Chert (Nodule) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Nodule)

Silicon Dioxide (SiO2)

Petrified Wood (Silicified wood (Quartz, Chalcedony, or Opal)) — sedimentary

Petrified Wood

Silicified wood (Quartz, Chalcedony, or Opal)

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

Chert (Flint)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (Jasper/Agate variety) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Jasper/Agate variety)

Microcrystalline Quartz (SiO2)

Chert (Limestone-based) (Silicon dioxide (SiO2)) — sedimentary

Chert (Limestone-based)

Silicon dioxide (SiO2)

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

Chert (Flint variety)

Silicon Dioxide (SiO2)

Chert (Arrowhead Preform or Flake) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Arrowhead Preform or Flake)

Microcrystalline Quartz (SiO2)

Chert (Flint nodule) (Chert (SiO2)) — sedimentary

Chert (Flint nodule)

Chert (SiO2)

Graphite (Graphite (Chemical Formula: C)) — Mineral (Native Element)

Graphite

Graphite (Chemical Formula: C)

Mineral (Native Element)

Chert (Chert / Flint) (Silicon dioxide (SiO2) - Microcrystalline quartz) — sedimentary

Chert (Chert / Flint)

Silicon dioxide (SiO2) - Microcrystalline quartz

Chert (White-Tan variety) (Silicon dioxide (SiO2) / Microcrystalline Quartz) — sedimentary

Chert (White-Tan variety)

Silicon dioxide (SiO2) / Microcrystalline Quartz

Chert (Nodular or Fossiliferous) (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — sedimentary

Chert (Nodular or Fossiliferous)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

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

Chert (Arrowhead Fragment)

Microcrystalline Quartz (SiO2)

Chert (with Quartz vein/coating) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (with Quartz vein/coating)

Microcrystalline Quartz (SiO2)