Rock Identifier

Category

Organic (Sedimentary Associated)

Browse organic (sedimentary associated) specimens identified by the Rock Identifier community.

Learn about Organic (Sedimentary Associated) in the encyclopedia

Sapropel

Bituminous Shale

Bituminous Shale

Black Shale

Oil Shale

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

Chert (Jasper variation)

Silicon Dioxide (SiO2)

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

Chert (Flint)

Silicon Dioxide (SiO2)

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

Chert (Flint)

Chert (Silicon Dioxide, SiO2)

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

Chert (Flint)

Silicon Dioxide (SiO2)

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

Chert (or Chalcedony)

Microcrystalline Quartz (SiO2)

Chert (specifically Black Chert or Flint) (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — sedimentary

Chert (specifically Black Chert or Flint)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Chert (specifically Red Chert/Jasper nodule) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (specifically Red Chert/Jasper nodule)

Microcrystalline Quartz (SiO2)

Chert Pebble (Microcrystalline quartz (SiO2)) — sedimentary

Chert Pebble

Microcrystalline quartz (SiO2)

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

Chert (and Jasper/Flint variety)

Cryptocrystalline Quartz (SiO2)

Red Jasper (Silicon Dioxide (SiO2) with Iron inclusions) — sedimentary

Red Jasper

Silicon Dioxide (SiO2) with Iron inclusions

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

Chert (Flint)

Chert (Silicon Dioxide, SiO2)

Chert (specifically Flint or Common Chert) (Chert (Cryptocrystalline Silica, SiO2)) — sedimentary

Chert (specifically Flint or Common Chert)

Chert (Cryptocrystalline Silica, SiO2)

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

Jasper (Red Jasper)

Silicon Dioxide (SiO₂)

Fossilized Coprolite (Coprolite (fossilized feces)) — sedimentary

Fossilized Coprolite

Coprolite (fossilized feces)

Jasper (Silicon Dioxide (SiO2)) — sedimentary

Jasper

Silicon Dioxide (SiO2)

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

Chert (River Pebble)

Microcrystalline Quartz (SiO2)

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

Chert (specifically Jasper/Flint)

Microcrystalline Quartz (SiO2)

Petrified Wood (Silicified Wood (SiO2)) — sedimentary

Petrified Wood

Silicified Wood (SiO2)

Chert (specifically Flint or Jasper variant) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (specifically Flint or Jasper variant)

Microcrystalline 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 (Jasper/Mudstone variety with Oxidation) (Silicon dioxide (SiO2)) — sedimentary

Chert (Jasper/Mudstone variety with Oxidation)

Silicon dioxide (SiO2)

Chert (and Jasper/Chalcedony variety) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (and Jasper/Chalcedony variety)

Microcrystalline Quartz (SiO2)

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

Chert (River Pebble)

Microcrystalline Quartz (SiO2)

Carnelian (Silicon Dioxide (Quartz variety), SiO2) — mineral

Carnelian

Silicon Dioxide (Quartz variety), SiO2

Shale (Shale (clay-sized silicate minerals)) — sedimentary

Shale

Shale (clay-sized silicate minerals)

Raw honey calcite (probable) (Calcite, calcium carbonate (CaCO₃)) — mineral

Raw honey calcite (probable)

Calcite, calcium carbonate (CaCO₃)

Native Sulfur (Sulfur (S)) — mineral

Native Sulfur

Sulfur (S)

Fairy Stone (Staurolite Concretion) (Staurolite (Fe2+2Al9Si4O23(OH))) — metamorphic

Fairy Stone (Staurolite Concretion)

Staurolite (Fe2+2Al9Si4O23(OH))

Turquoise (Hydrated copper and aluminum phosphate (CuAl6(PO4)4(OH)8·4H2O)) — mineral

Turquoise

Hydrated copper and aluminum phosphate (CuAl6(PO4)4(OH)8·4H2O)

Gneiss (High-grade metamorphic rock (Gneiss)) — metamorphic

Gneiss

High-grade metamorphic rock (Gneiss)

Fossilized Gastropod / Coral (Phylum Mollusca / Cnidaria (Silicified or Calcified)) — fossil

Fossilized Gastropod / Coral

Phylum Mollusca / Cnidaria (Silicified or Calcified)

Fossil Shark Tooth (Carcharodon sp. (likely Otodus or similar Lamniformes order)) — sedimentary

Fossil Shark Tooth

Carcharodon sp. (likely Otodus or similar Lamniformes order)

Red Jasper (Silicon Dioxide (SiO2) with Iron Oxide inclusions) — sedimentary

Red Jasper

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Petrified Wood (Silicified Wood (primarily SiO2)) — mineral

Petrified Wood

Silicified Wood (primarily SiO2)

Geode (Unopened) (Siliceous Septarian Concretion / Geode (SiO2)) — sedimentary

Geode (Unopened)

Siliceous Septarian Concretion / Geode (SiO2)

Yellow Jasper (Chalcedony (SiO2)) — sedimentary

Yellow Jasper

Chalcedony (SiO2)

Red Sandstone (Siltstone Pebble) (Arenite / Siltstone with Iron Oxide (Fe2O3)) — sedimentary

Red Sandstone (Siltstone Pebble)

Arenite / Siltstone with Iron Oxide (Fe2O3)

Yellow Jasper (Opaque Cryptocrystalline Quartz (SiO2)) — sedimentary

Yellow Jasper

Opaque Cryptocrystalline Quartz (SiO2)

Gravel/Common Siltstone (Siltstone (fine-grained siliciclastic sedimentary rock)) — sedimentary

Gravel/Common Siltstone

Siltstone (fine-grained siliciclastic sedimentary rock)

Petrified Wood (Agatized/Silicified Wood) (Silicified Wood (SiO2)) — sedimentary

Petrified Wood (Agatized/Silicified Wood)

Silicified Wood (SiO2)

Amber (Copal) (Succinite (fossilized resin)) — mineral

Amber (Copal)

Succinite (fossilized resin)