Rock Identifier

Category

Anthropogenic Sedimentary Style Organic Solid

Browse anthropogenic sedimentary style organic solid specimens identified by the Rock Identifier community.

Learn about Anthropogenic Sedimentary Style Organic Solid in the encyclopedia

Sapropel

Sapropel

Bituminous Shale

Bituminous Shale

Oil Shale

Oil Shale

Black Shale

Black Shale

Travertine (Travertine (a terrestrial form of Limestone, CaCO3)) — sedimentary

Travertine

Travertine (a terrestrial form of Limestone, CaCO3)

Fossilized Plant or Tree Bark (Lepidodendron or Sigillaria (example genera)) — sedimentary

Fossilized Plant or Tree Bark

Lepidodendron or Sigillaria (example genera)

Ironstone Concretion (Limonite/Goethite) (Goethite/Limonite concretion (FeO(OH)·nH2O)) — sedimentary

Ironstone Concretion (Limonite/Goethite)

Goethite/Limonite concretion (FeO(OH)·nH2O)

Banded Chert (Silicon dioxide (SiO2) - Microcrystalline Quartz) — sedimentary

Banded Chert

Silicon dioxide (SiO2) - Microcrystalline Quartz

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

Chert (Flint)

Silicon Dioxide (SiO2)

Travertine (Calcareous tufa (CaCO3)) — sedimentary

Travertine

Calcareous tufa (CaCO3)

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

Chert (Nodule)

Microcrystalline quartz (SiO2)

Fossiliferous Limestone (Shell Fragment) (Biogenic Limestone (Calcium Carbonate / CaCO3)) — sedimentary

Fossiliferous Limestone (Shell Fragment)

Biogenic Limestone (Calcium Carbonate / CaCO3)

Limestone (Concretionary or Tufa) (Calcium Carbonate (CaCO3)) — sedimentary

Limestone (Concretionary or Tufa)

Calcium Carbonate (CaCO3)

Petrified Wood (Silicified wood (Quartz pseudomorph after wood)) — fossil

Petrified Wood

Silicified wood (Quartz pseudomorph after wood)

Sandstone (with carbonaceous plant fragments) (Arenite (composed primarily of SiO2)) — sedimentary

Sandstone (with carbonaceous plant fragments)

Arenite (composed primarily of SiO2)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Greenstone / Chert (Cryptocrystalline Quartz (SiO2) or Altered Basalt) — sedimentary or metamorphic

Greenstone / Chert

Cryptocrystalline Quartz (SiO2) or Altered Basalt

sedimentary or metamorphic

Amber (Succiniferous fossil resin (C10H16O)) — mineraloid

Amber

Succiniferous fossil resin (C10H16O)

Petrified Wood (Silicified wood (Quartz/Chalcedony - SiO2)) — mineral

Petrified Wood

Silicified wood (Quartz/Chalcedony - SiO2)

Fossil Shark Tooth (Otodus obliquus) (Otodus obliquus; hydroxyapatite (mineralized form Ca5(PO4)3(OH))) — sedimentary (fossiliferous)

Fossil Shark Tooth (Otodus obliquus)

Otodus obliquus; hydroxyapatite (mineralized form Ca5(PO4)3(OH))

sedimentary (fossiliferous)

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

Chert (specifically Blue Chert or Flint)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Limestone with Fossil Inclusion (Sedimentary Calcium Carbonate (CaCO3)) — sedimentary

Limestone with Fossil Inclusion

Sedimentary Calcium Carbonate (CaCO3)

Amber (Succinite (specifically for Baltic amber); chemical formula approximately C10H16O) — Mineraloid

Amber

Succinite (specifically for Baltic amber); chemical formula approximately C10H16O

Travertine (Terrestrial Sedimentary Limestone (CaCO3)) — sedimentary

Travertine

Terrestrial Sedimentary Limestone (CaCO3)

Fossil Shark Tooth (Chondrichthyes (class); likely Lamniformes (order) fossilized in Apatite/Hydroxyapatite) — fossil

Fossil Shark Tooth

Chondrichthyes (class); likely Lamniformes (order) fossilized in Apatite/Hydroxyapatite

Chert (Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert

Cryptocrystalline Quartz (SiO2)

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

Chert (Flint)

Chert (Microcrystalline Quartz, SiO2)

Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Chert

Microcrystalline Quartz (SiO2)

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

Chert (Jasper)

Microcrystalline Quartz (SiO2)

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

Chert (Flint)

Chert (Cryptocrystalline Silicon Dioxide, SiO2)

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

Chert (White Chert or Flint)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (containing Iron Oxide) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (containing Iron Oxide)

Microcrystalline Quartz (SiO2)

Chert (Flint) (Microcrystalline Opaline Silica (SiO2)) — sedimentary

Chert (Flint)

Microcrystalline Opaline Silica (SiO2)

Chert (Iron-rich or Slate-like variant) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Iron-rich or Slate-like variant)

Silicon Dioxide (SiO2)

Coarse Sand or Fine Gravel (Detrital Sedimentary Fragments (mostly SiO2)) — sedimentary

Coarse Sand or Fine Gravel

Detrital Sedimentary Fragments (mostly SiO2)

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

Chert (Jasper variation)

Silicon Dioxide (SiO2)

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

Chert (Jasper variety)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Chert (Chocolate or Brown Flint) (Chert (SiO2)) — sedimentary

Chert (Chocolate or Brown Flint)

Chert (SiO2)

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

Chert (Nodule)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (Field Stone) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Field Stone)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

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

Chert (and Flint)

Silicon Dioxide (SiO2)

Sandstone Concretion (Clastic sedimentary rock (primarily Quartz SiO2)) — sedimentary

Sandstone Concretion

Clastic sedimentary rock (primarily Quartz SiO2)

Tumbled Black Jasper (Silicon Dioxide (SiO2) with iron and carbon inclusions) — sedimentary

Tumbled Black Jasper

Silicon Dioxide (SiO2) with iron and carbon inclusions

Chert (specifically Flint or Gray Chert) (Silicon Dioxide (Microcrystalline Quartz), SiO2) — sedimentary

Chert (specifically Flint or Gray Chert)

Silicon Dioxide (Microcrystalline Quartz), SiO2

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

Chert (Iron-stained)

Microcrystalline Quartz (SiO2)