Rock Identifier

Category

Sedimentary (Fossiliferous)

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

Learn about Sedimentary (Fossiliferous) in the encyclopedia

Fossiliferous Limestone

Fossiliferous Limestone

Shelly Limestone

Shelly Limestone

Conglomerate

Quartzite Sandstone

Quartzite Sandstone

Breccia

Ironstone

Coal

Kambaba Jasper

Limestone

Asphalt Rock

Claystone

Mudstone

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

Chert / Flint

Silicon Dioxide (SiO2)

Seashell Fossil (Mollusca (Bivalvia)) — fossil

Seashell Fossil

Mollusca (Bivalvia)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Sandstone pebble (Sandstone (Quartz-rich Arenite)) — sedimentary

Sandstone pebble

Sandstone (Quartz-rich Arenite)

Limonite (Iron Ore) (FeO(OH)·nH2O) — mineral

Limonite (Iron Ore)

FeO(OH)·nH2O

Chert Pebble (Microcrystalline silica (SiO2)) — sedimentary

Chert Pebble

Microcrystalline silica (SiO2)

Yellow Quartzite (Silicon Dioxide (SiO2)) — metamorphic

Yellow Quartzite

Silicon Dioxide (SiO2)

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

Chert (Jasper/Flint variety)

Silicon Dioxide (SiO2)

Gypsum (Selenite sand) (Calcium sulfate dihydrate (CaSO4·2H2O)) — mineral

Gypsum (Selenite sand)

Calcium sulfate dihydrate (CaSO4·2H2O)

Banded Chert (Ironstone type) (Silicon Dioxide (SiO2) with Iron Oxide inclusions) — sedimentary

Banded Chert (Ironstone type)

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Sandstone (Arenite (SiO2 based with mineral cements)) — sedimentary

Sandstone

Arenite (SiO2 based with mineral cements)

Banded Chert (Silicon Dioxide (SiO2) with impurities) — sedimentary

Banded Chert

Silicon Dioxide (SiO2) with impurities

Riverstone Jasper (Silicon Dioxide (SiO2) with iron/clay inclusions) — sedimentary

Riverstone Jasper

Silicon Dioxide (SiO2) with iron/clay inclusions

Chert (Yellow variety) (Microcrystalline quartz (SiO2)) — sedimentary

Chert (Yellow variety)

Microcrystalline quartz (SiO2)

Sandstone (Arenite (SiO2 with various cementing minerals)) — sedimentary

Sandstone

Arenite (SiO2 with various cementing minerals)

Conglomerate (Conglomeratic Sandstone) — sedimentary

Conglomerate

Conglomeratic Sandstone

Orthoceras Fossil in Limestone (Orthoceras regulare (Class Cephalopoda)) — fossil

Orthoceras Fossil in Limestone

Orthoceras regulare (Class Cephalopoda)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Chert

Microcrystalline Quartz (SiO2)

Fossilized Tabulate Coral (Favosites (Honeycomb Coral)) — fossil

Fossilized Tabulate Coral

Favosites (Honeycomb Coral)

Banded Chert (River Stone) (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — sedimentary

Banded Chert (River Stone)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

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

Red Jasper

Jasper (Silicon Dioxide, SiO2)

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

Chert (Banded)

Microcrystalline Quartz (SiO2)

Crinoid Stem Fossil (Class Crinoidea (Sea Lilies)) — sedimentary

Crinoid Stem Fossil

Class Crinoidea (Sea Lilies)

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

Chert / Flint

Silicon Dioxide (SiO2)

Sandstone (Arenite (SiO2 principal)) — sedimentary

Sandstone

Arenite (SiO2 principal)

Bauxite (Concretionary) (Bauxite (Al(OH)3, AlO(OH))) — sedimentary

Bauxite (Concretionary)

Bauxite (Al(OH)3, AlO(OH))

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

Chert (Jasper/Flint variety)

Microcrystalline Quartz (SiO2)

Sandstone (Arenite (SiO2 primarily)) — sedimentary

Sandstone

Arenite (SiO2 primarily)

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

Chert (Jasper)

Microcrystalline Quartz (SiO2)

Milky Quartz (Quartz (Silicon Dioxide, SiO2)) — mineral

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

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

Chert

Chert (Microcrystalline Quartz, SiO2)

Milky Quartz (Crystalline Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Crystalline Silicon Dioxide (SiO2)

Sandstone (with potential Concretion or Fossil fragment) (Arenite (primarily SiO2)) — sedimentary

Sandstone (with potential Concretion or Fossil fragment)

Arenite (primarily SiO2)

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

Chert (and Chalcedony)

Silicon Dioxide (SiO2)

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

Petrified Wood

Silicified Wood (primarily Quartz/SiO2)

Sandstone (Quartzite Pebble) (Arenite (primarily SiO2)) — sedimentary

Sandstone (Quartzite Pebble)

Arenite (primarily SiO2)

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

Chert (Flint)

Chert (Silicon Dioxide, SiO2)

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

Chert (Nodule)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Conglomerate (Conglomerate (SiO2 matrix with various inclusions)) — sedimentary

Conglomerate

Conglomerate (SiO2 matrix with various inclusions)

Jasper Pendant (Silicon dioxide (SiO2) with impurities) — Mineral/Sedimentary

Jasper Pendant

Silicon dioxide (SiO2) with impurities

Mineral/Sedimentary

Quartz (Chert/Chalcedony variety) (Silicon Dioxide (SiO2)) — mineral

Quartz (Chert/Chalcedony variety)

Silicon Dioxide (SiO2)