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 (and Quartzite) (Microcrystalline silica (SiO2)) — sedimentary

Chert (and Quartzite)

Microcrystalline silica (SiO2)

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

Chert (Jasper/Flint variety)

Microcrystalline Quartz (SiO2)

Fossilized Coral (Favosites) (Favosites (extinct genus of tabulate coral)) — sedimentary

Fossilized Coral (Favosites)

Favosites (extinct genus of tabulate coral)

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

Chert (Jasper)

Microcrystalline Quartz (SiO2)

Petrified Wood (Silicified Wood (primarily Quartz/Chalcedony, SiO2)) — sedimentary

Petrified Wood

Silicified Wood (primarily Quartz/Chalcedony, SiO2)

Chert (Jasper variety) (Silicon Dioxide (SiO2) - Cryptocrystalline Quartz) — sedimentary

Chert (Jasper variety)

Silicon Dioxide (SiO2) - Cryptocrystalline Quartz

Jasper with Chert (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — sedimentary

Jasper with Chert

Silicon Dioxide (SiO2) - Microcrystalline Quartz

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

Chert / Jasper

Silicon Dioxide (SiO₂)

Chert (Jasper variety) (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — sedimentary

Chert (Jasper variety)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Chert (often called Flint or Agate nodule) (Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (often called Flint or Agate nodule)

Cryptocrystalline Quartz (SiO2)

Chert (Jasper) (Silicon dioxide (SiO2)) — sedimentary

Chert (Jasper)

Silicon dioxide (SiO2)

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

Chert / Flint

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Flint with Fossil Inclusion (Cryptocrystalline quartz (SiO2) enclosing fossilized organic remains) — sedimentary

Flint with Fossil Inclusion

Cryptocrystalline quartz (SiO2) enclosing fossilized organic remains

Limestone (with crushed gravel) (Limestone (Calcium Carbonate, CaCO3)) — sedimentary

Limestone (with crushed gravel)

Limestone (Calcium Carbonate, CaCO3)

Brecciated Chert (Silicon Dioxide (SiO2)) — sedimentary

Brecciated Chert

Silicon Dioxide (SiO2)

Asphalt (Asphalt concrete) — sedimentary

Asphalt

Asphalt concrete

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Chert (Jasper) (Silicon dioxide (SiO2)) — sedimentary

Chert (Jasper)

Silicon dioxide (SiO2)

Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Chert

Microcrystalline Quartz (SiO2)

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

Chert (Flint)

Microcrystalline Quartz (SiO2)

Limestone (or Sandstone) (Calcium Carbonate (CaCO3) / Silica (SiO2)) — sedimentary

Limestone (or Sandstone)

Calcium Carbonate (CaCO3) / Silica (SiO2)

Fossil Shell (Bivalve) (Phylum Mollusca, Class Bivalvia (typically composed of Calcium Carbonate / CaCO3)) — sedimentary

Fossil Shell (Bivalve)

Phylum Mollusca, Class Bivalvia (typically composed of Calcium Carbonate / CaCO3)

Amber (and Cubic Zirconia) (Fossilized Tree Resin) — mineraloid

Amber (and Cubic Zirconia)

Fossilized Tree Resin

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

Chert (Flint)

Microcrystalline Quartz (SiO2)

Petrified Wood (Silicified Wood (SiO2 permineralization)) — sedimentary

Petrified Wood

Silicified Wood (SiO2 permineralization)

Leopard Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Leopard Jasper

Microcrystalline Quartz (SiO2)

Red Jasper (Silicon dioxide (microcrystalline quartz), SiO2) — sedimentary

Red Jasper

Silicon dioxide (microcrystalline quartz), SiO2

Jasper (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — sedimentary

Jasper

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Ferruginous Chert (Silicon dioxide with iron oxide impurities (SiO2 + Fe2O3)) — sedimentary

Ferruginous Chert

Silicon dioxide with iron oxide impurities (SiO2 + Fe2O3)

Chert (Septarian Nodules-like) (Silicon dioxide (SiO2)) — sedimentary

Chert (Septarian Nodules-like)

Silicon dioxide (SiO2)

Mosasaur Tooth Fossil (Mosasaurus sp.) — fossil

Mosasaur Tooth Fossil

Mosasaurus sp.

Pyrite in Limestone (Iron Sulfide (FeS2) in Calcium Carbonate (CaCO3)) — mineral

Pyrite in Limestone

Iron Sulfide (FeS2) in Calcium Carbonate (CaCO3)

Red Jasper (possibly Brecciated) (Jasper (Silicon Dioxide, SiO2)) — sedimentary

Red Jasper (possibly Brecciated)

Jasper (Silicon Dioxide, SiO2)

Carnelian (Silicon dioxide (chalcedony variety), SiO2) — gemstone

Carnelian

Silicon dioxide (chalcedony variety), SiO2

Green Calcite (Calcite (Calcium Carbonate, CaCO3)) — mineral

Green Calcite

Calcite (Calcium Carbonate, CaCO3)

Yellow Chalcedony (likely Carnelian or Yellow Agate) (Silicon Dioxide (SiO2)) — mineral

Yellow Chalcedony (likely Carnelian or Yellow Agate)

Silicon Dioxide (SiO2)

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

Chert (Flint)

Silicon Dioxide (SiO2)

Chert Nodules in Limestone (Microcrystalline Quartz (SiO2) within Calcium Carbonate (CaCO3)) — sedimentary

Chert Nodules in Limestone

Microcrystalline Quartz (SiO2) within Calcium Carbonate (CaCO3)

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

Chert (Flint)

Microcrystalline Quartz (SiO2)

Yellow Jasper (Chalcedony (Silicon Dioxide, SiO2) with iron oxide inclusions) — sedimentary

Yellow Jasper

Chalcedony (Silicon Dioxide, SiO2) with iron oxide inclusions

Dalmation Jasper (or Dalmation Stone) (Dalmation Stone (composed of Perthite, Quartz, and Arfvedsonite)) — igneous

Dalmation Jasper (or Dalmation Stone)

Dalmation Stone (composed of Perthite, Quartz, and Arfvedsonite)

Pyrite (Pyrite (Iron sulfide, FeS₂)) — mineral

Pyrite

Pyrite (Iron sulfide, FeS₂)