Rock Identifier

Category

Sedimentary (Fossilized Organic Matter)

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

Learn about Sedimentary (Fossilized Organic Matter) in the encyclopedia

Sapropel

Petrified Wood

Amber

Bituminous Shale

Bituminous Shale

Oil Shale

Matte Obsidian

Black Shale

Conglomerate

Jet

Peat

Quartzite Sandstone

Quartzite Sandstone

Breccia

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

Amber (Copal)

Succinite (fossilized resin)

Fossil Shark Tooth (Selachii (fossilized dentition)) — fossil

Fossil Shark Tooth

Selachii (fossilized dentition)

Agatized Fossil (Druzy Agate) (Silicon Dioxide (SiO2) replacing organic matter) — sedimentary

Agatized Fossil (Druzy Agate)

Silicon Dioxide (SiO2) replacing organic matter

Petrified Wood (Jet or Coalified Wood appearance) (Silicified wood (principally SiO2) or Carbonized Wood) — sedimentary

Petrified Wood (Jet or Coalified Wood appearance)

Silicified wood (principally SiO2) or Carbonized Wood

Shark Tooth Fossil (Vertebrate fossilized tooth) — fossil

Shark Tooth Fossil

Vertebrate fossilized tooth

Amber (Fossilized tree resin) — gemstone

Amber

Fossilized tree resin

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

Chert (Yellow Jasper)

Microcrystalline Quartz (SiO2)

Graphite (Graphite (Carbon, C)) — mineral

Graphite

Graphite (Carbon, C)

Quartz Geode (Crystalline Silicon Dioxide (SiO2) in sedimentary/volcanic host) — mineral

Quartz Geode

Crystalline Silicon Dioxide (SiO2) in sedimentary/volcanic host

Petrified Wood (Silicified wood (primarily SiO2)) — metamorphic

Petrified Wood

Silicified wood (primarily SiO2)

Pyrite in Slate or Shale (Iron Sulfide (FeS2) in Argillaceous Matrix) — mineral

Pyrite in Slate or Shale

Iron Sulfide (FeS2) in Argillaceous Matrix

Chalcopyrite (CuFeS2) — mineral

Chalcopyrite

CuFeS2

River Jasper (Chert/Chalcedony) (Silicon Dioxide (SiO2) with iron oxide impurities) — sedimentary

River Jasper (Chert/Chalcedony)

Silicon Dioxide (SiO2) with iron oxide impurities

Shungite (Shungite (carbon-rich Precambrian mineraloid)) — mineral

Shungite

Shungite (carbon-rich Precambrian mineraloid)

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

Chert (Jasper)

Microcrystalline Quartz (SiO2)

Black Jasper (Silicon Dioxide (SiO2) with Carbonaceous inclusions) — sedimentary

Black Jasper

Silicon Dioxide (SiO2) with Carbonaceous inclusions

Limestone (Sedimentary Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Sedimentary Calcium Carbonate (CaCO3)

Chert Concretion (Sedimentary Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert Concretion

Sedimentary Cryptocrystalline Quartz (SiO2)

Fossiliferous limestone (Bioclastic carbonate rock; predominantly calcite (CaCO₃)) — sedimentary

Fossiliferous limestone

Bioclastic carbonate rock; predominantly calcite (CaCO₃)

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

Petrified Wood

Silicified Wood (primarily SiO2)

Glauconitic Sandstone (Greensand) (Glauconitic Sandstone (Iron-potassium phyllosilicate mineral: (K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2)) — sedimentary

Glauconitic Sandstone (Greensand)

Glauconitic Sandstone (Iron-potassium phyllosilicate mineral: (K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2)

Fossiliferous Limestone (Limestone (Calcium Carbonate - CaCO3)) — sedimentary

Fossiliferous Limestone

Limestone (Calcium Carbonate - CaCO3)

Petrified Wood (Silicified Wood (SiO2)) — sedimentary

Petrified Wood

Silicified Wood (SiO2)

Petrified Wood and Mixed Rocks (Silicified Wood (SiO2)) — fossil

Petrified Wood and Mixed Rocks

Silicified Wood (SiO2)

Dinosaur Fossil Tooth (Vertebrate Fossilized Tooth) — fossil

Dinosaur Fossil Tooth

Vertebrate Fossilized Tooth

Polished amber (Amber (fossilized plant resin; chiefly amorphous organic compounds)) — gemstone

Polished amber

Amber (fossilized plant resin; chiefly amorphous organic compounds)

Shale (Shale (comprised mostly of clay minerals and quartz)) — sedimentary

Shale

Shale (comprised mostly of clay minerals and quartz)

Shale (Fissile Mudstone (Shale)) — sedimentary

Shale

Fissile Mudstone (Shale)

Chert Concretion (Microcrystalline Quartz (SiO2) in Carbonate Matrix) — sedimentary

Chert Concretion

Microcrystalline Quartz (SiO2) in Carbonate Matrix

Fossilized Bone (Permineralized Vertebrate Bone) — fossil

Fossilized Bone

Permineralized Vertebrate Bone

Limestone and Quartz Gravel with Petrified Wood (Sedimentary gravel aggregate and fossilized wood) — sedimentary

Limestone and Quartz Gravel with Petrified Wood

Sedimentary gravel aggregate and fossilized wood

Glauconite sand (Glauconite (K,Na)(Fe,Al,Mg)2(Si,Al)4O10(OH)2) — sedimentary

Glauconite sand

Glauconite (K,Na)(Fe,Al,Mg)2(Si,Al)4O10(OH)2

Bituminous Coal (Organic Sedimentary Rock (Carbon-based)) — sedimentary

Bituminous Coal

Organic Sedimentary Rock (Carbon-based)

Petrified Wood (Silicified wood (SiO2)) — fossil

Petrified Wood

Silicified wood (SiO2)

Glauconitic Sandstone (Glauconitic Quartz Arenite) — sedimentary

Glauconitic Sandstone

Glauconitic Quartz Arenite

Fossilized Brachiopod (Brachiopoda (Phylum)) — fossil

Fossilized Brachiopod

Brachiopoda (Phylum)

Soil with Mineral Detritus and Quartz Fragments (Regolith / Silicate Mineral Aggregate) — sedimentary

Soil with Mineral Detritus and Quartz Fragments

Regolith / Silicate Mineral Aggregate

Fossilized Brain Coral (Diploria labyrinthiformis (Fossilized)) — sedimentary

Fossilized Brain Coral

Diploria labyrinthiformis (Fossilized)

Coal (Anthracite or Bituminous) (Carbonaceous sedimentary rock (Carbon)) — sedimentary

Coal (Anthracite or Bituminous)

Carbonaceous sedimentary rock (Carbon)

Pyrite Concretion (Iron Sulfide (FeS2) in Sedimentary Matrix) — sedimentary

Pyrite Concretion

Iron Sulfide (FeS2) in Sedimentary Matrix

Amber (Succinate (Fossilized Tree Resin)) — mineraloid

Amber

Succinate (Fossilized Tree Resin)

Glauconite (Greensand) ((K, Na)(Fe3⁰, Al, Mg)₂(Si, Al)₄O₁₀(OH)₂) — sedimentary

Glauconite (Greensand)

(K, Na)(Fe3⁰, Al, Mg)₂(Si, Al)₄O₁₀(OH)₂