Rock Identifier

Category

Sedimentary (Fossil)

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

Learn about Sedimentary (Fossil) in the encyclopedia

Fossil Opal

Fossiliferous Limestone

Fossiliferous Limestone

Bone Opal

Turritella Jasper

Turritella Agate

Turritella Agate

Amber

Petrified Wood

Diatomite

Guano

Conglomerate

Jet

Diatomaceous Earth

Limestone (Sedimentary Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Sedimentary Calcium Carbonate (CaCO3)

Botryoidal Chalcedony (Silicon Dioxide (SiO2)) — mineral

Botryoidal Chalcedony

Silicon Dioxide (SiO2)

Limestone with Calcite Veining (Sedimentary Carbonate Rock (CaCO3)) — sedimentary

Limestone with Calcite Veining

Sedimentary Carbonate Rock (CaCO3)

Crushed Limestone (Calcite-rich Sedimentary Rock (CaCO3)) — sedimentary

Crushed Limestone

Calcite-rich Sedimentary Rock (CaCO3)

Fossilized Shark Tooth (Cretaceous to Neogene) (Elasmobranchii dental fossil (likely Squalicorax or similar species)) — mineral (biogenic replacement)

Fossilized Shark Tooth (Cretaceous to Neogene)

Elasmobranchii dental fossil (likely Squalicorax or similar species)

mineral (biogenic replacement)

Sandstone (Quartz Sandstone) (Arenite (SiO2 based)) — sedimentary

Sandstone (Quartz Sandstone)

Arenite (SiO2 based)

Shale (Shale (Lutite)) — sedimentary

Shale

Shale (Lutite)

Sandstone with Concretions / Liesegang Rings (Arenite with iron oxide banding) — sedimentary

Sandstone with Concretions / Liesegang Rings

Arenite with iron oxide banding

Weathered sandstone or quartz-rich sedimentary pebble (Indeterminate lithic fragment; likely quartz arenite (sandstone)) — sedimentary

Weathered sandstone or quartz-rich sedimentary pebble

Indeterminate lithic fragment; likely quartz arenite (sandstone)

Fossiliferous Limestone (Fossiliferous Limestone (CaCO3)) — sedimentary

Fossiliferous Limestone

Fossiliferous Limestone (CaCO3)

Piddock bored rock (likely Mudstone or Shale) (Ichnofossil (Gastrochaenolites borings) in Fine-grained Sedimentary Rock) — sedimentary

Piddock bored rock (likely Mudstone or Shale)

Ichnofossil (Gastrochaenolites borings) in Fine-grained Sedimentary Rock

Fossilized Ray Barb (Stinger) Fragment (Myliobatiformes indet. (Fossil stingray spine)) — fossil

Fossilized Ray Barb (Stinger) Fragment

Myliobatiformes indet. (Fossil stingray spine)

Kambaba Jasper (Stromatolite (fossilized algae)) — sedimentary

Kambaba Jasper

Stromatolite (fossilized algae)

Limestone (Limestone (CaCO3)) — sedimentary

Limestone

Limestone (CaCO3)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Shale (Fissile Mudstone (primarily composed of clay minerals and quartz)) — sedimentary

Shale

Fissile Mudstone (primarily composed of clay minerals and quartz)

Coquina or Fossiliferous Limestone (Fossiliferous Calcarenite (CaCO3)) — sedimentary

Coquina or Fossiliferous Limestone

Fossiliferous Calcarenite (CaCO3)

Sandstone (Quartz Sandstone) (Arenite (primarily SiO2)) — sedimentary

Sandstone (Quartz Sandstone)

Arenite (primarily SiO2)

Ironstone Concretion (Siderite or Hematite Concretion) — sedimentary

Ironstone Concretion

Siderite or Hematite Concretion

Fossiliferous Limestone / Fossil Fragment (Calcium Carbonate (CaCO3) with indeterminate biogenic remains) — fossil

Fossiliferous Limestone / Fossil Fragment

Calcium Carbonate (CaCO3) with indeterminate biogenic remains

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Amber (Succinite (Fossilized Tree Resin, C10H16O)) — gemstone

Amber

Succinite (Fossilized Tree Resin, C10H16O)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Favosites (Honeycomb Coral Fossil) (Favosites (Genus of extinct tabulate coral)) — sedimentary

Favosites (Honeycomb Coral Fossil)

Favosites (Genus of extinct tabulate coral)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Limestone (Sedimentary rock composed primarily of Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Sedimentary rock composed primarily of Calcium Carbonate (CaCO3)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Coquina or Fossiliferous Limestone (Fossiliferous Calcarenite (CaCO3)) — sedimentary

Coquina or Fossiliferous Limestone

Fossiliferous Calcarenite (CaCO3)

Concretion (Various mineral compositions, typically carbonate or iron oxide cemented sediment) — Sedimentary

Concretion

Various mineral compositions, typically carbonate or iron oxide cemented sediment

Shale (Shale (Fissile Mudstone)) — sedimentary

Shale

Shale (Fissile Mudstone)

Shale (Mudstone/Shale) — sedimentary

Shale

Mudstone/Shale

Chert (specifically Tan/Yellow Chert) (Silicon Dioxide (SiO2)) — sedimentary

Chert (specifically Tan/Yellow Chert)

Silicon Dioxide (SiO2)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Shale (Beach-worn) (Laminated Pelite (primarily clay minerals and quartz)) — sedimentary

Shale (Beach-worn)

Laminated Pelite (primarily clay minerals and quartz)

Crinoid Stem Fossil (St John's Bead) (Crinoidea (Class)) — fossil

Crinoid Stem Fossil (St John's Bead)

Crinoidea (Class)

Limestone (likely weathered) (Limestone (Mainly Calcium Carbonate, CaCO3)) — sedimentary

Limestone (likely weathered)

Limestone (Mainly Calcium Carbonate, CaCO3)

Sandstone (Arenite (SiO2 principal component)) — sedimentary

Sandstone

Arenite (SiO2 principal component)

Limestone with Calcite Veins (Calcium Carbonate (CaCO3)) — sedimentary

Limestone with Calcite Veins

Calcium Carbonate (CaCO3)

Limestone (Flagstone) (Fossiliferous Limestone (CaCO3)) — sedimentary

Limestone (Flagstone)

Fossiliferous Limestone (CaCO3)

Sandstone (specifically Cross-bedded Sandstone) (Arenite (composed primarily of SiO2)) — sedimentary

Sandstone (specifically Cross-bedded Sandstone)

Arenite (composed primarily of SiO2)

Ferruginous Sandstone (Iron-rich Sandstone) (Ferruginous Arenite) — sedimentary

Ferruginous Sandstone (Iron-rich Sandstone)

Ferruginous Arenite

Sandstone (Ferruginous) (Arenite with Iron Oxide (Limonite/Hematite) coating) — sedimentary

Sandstone (Ferruginous)

Arenite with Iron Oxide (Limonite/Hematite) coating