Rock Identifier

Category

Limestone

Browse limestone specimens identified by the Rock Identifier community.

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Limestone

Limestone

Lithographic Limestone

Oolitic Limestone

Oolitic Limestone

Fossiliferous Limestone

Fossiliferous Limestone

Chalky Limestone

Crinoidal Limestone

Crinoidal Limestone

Shelly Limestone

Shelly Limestone

Micrite

Micrite

Calcirudite

Calcirudite

Coral Rock

Coral Rock

Coquina

Coquina

Chalk

Chalk

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

sedimentary
Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

sedimentary
Limestone (Sedimentary Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Sedimentary Calcium Carbonate (CaCO3)

sedimentary
Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

sedimentary
Limestone (Calcite-rich sedimentary rock (CaCO3)) — sedimentary

Limestone

Calcite-rich sedimentary rock (CaCO3)

sedimentary
Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

sedimentary
Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

sedimentary
Fossiliferous Limestone (Coquina-like) (Biogenic Limestone) — sedimentary

Fossiliferous Limestone (Coquina-like)

Biogenic Limestone

sedimentary
Fossilized Coral / Fossiliferous Limestone (Anthozoa fossil in Limestone (CaCO3)) — fossil

Fossilized Coral / Fossiliferous Limestone

Anthozoa fossil in Limestone (CaCO3)

fossil
Limestone (Limestone (CaCO3)) — sedimentary

Limestone

Limestone (CaCO3)

sedimentary
Limestone (CaCO3 (Limestone)) — sedimentary

Limestone

CaCO3 (Limestone)

sedimentary
Limestone Pebble (Sedimentary Calcium Carbonate (CaCO3)) — sedimentary

Limestone Pebble

Sedimentary Calcium Carbonate (CaCO3)

sedimentary
Limestone with Fossil Impression (Calcium Carbonate (CaCO3)) — sedimentary

Limestone with Fossil Impression

Calcium Carbonate (CaCO3)

sedimentary
Crinoid Stem Fossil (Crinoid Columnal (Phylum Echinodermata)) — fossil

Crinoid Stem Fossil

Crinoid Columnal (Phylum Echinodermata)

fossil
Fossiliferous Limestone (with Coralline Inclusions) (Calcium Carbonate (CaCO3)) — sedimentary

Fossiliferous Limestone (with Coralline Inclusions)

Calcium Carbonate (CaCO3)

sedimentary
Fossiliferous Limestone (Calcium Carbonate (CaCO3) with Biogenic Inclusions) — sedimentary

Fossiliferous Limestone

Calcium Carbonate (CaCO3) with Biogenic Inclusions

sedimentary
Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

sedimentary
Likely tumbled sandstone or limestone (Quartz-rich sandstone (possibly calcarenite/limestone)) — sedimentary

Likely tumbled sandstone or limestone

Quartz-rich sandstone (possibly calcarenite/limestone)

sedimentary
Lapis Lazuli (Complex silicate rock (primarily Lazurite: (Na,Ca)8(AlSiO4)6(SO4,S,Cl)2)) — gemstone

Lapis Lazuli

Complex silicate rock (primarily Lazurite: (Na,Ca)8(AlSiO4)6(SO4,S,Cl)2)

gemstone
Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Chert

Microcrystalline Quartz (SiO2)

sedimentary
Chert (Common Opal/Agatized Rock) (Microcrystalline Quartz (SiO2) with potential Chalcedony/Opaline silica) — sedimentary

Chert (Common Opal/Agatized Rock)

Microcrystalline Quartz (SiO2) with potential Chalcedony/Opaline silica

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

Chert (Flint)

Cryptocrystalline Quartz (SiO2)

sedimentary
Chert Nodules (with Quartz Inclusions) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert Nodules (with Quartz Inclusions)

Microcrystalline Quartz (SiO2)

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

Chert / Flint

Silicon Dioxide (SiO2)

sedimentary
Limestone Pebble (Limestone (CaCO3)) — sedimentary

Limestone Pebble

Limestone (CaCO3)

sedimentary
Crushed Limestone (Limestone (CaCO3)) — sedimentary

Crushed Limestone

Limestone (CaCO3)

sedimentary
Coquina (Bioclastic Limestone) — sedimentary

Coquina

Bioclastic Limestone

sedimentary
Coquina (Bioclastic Limestone) — sedimentary

Coquina

Bioclastic Limestone

sedimentary
Coquina (Coquina Limestone) — sedimentary

Coquina

Coquina Limestone

sedimentary
Coquina (Biogenic Limestone) — sedimentary

Coquina

Biogenic Limestone

sedimentary
Coquina (Bioclastic Limestone) — sedimentary

Coquina

Bioclastic Limestone

sedimentary
Coquina (Bioclastic Limestone) — sedimentary

Coquina

Bioclastic Limestone

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

Chert (Flint)

Chert (Microcrystalline Quartz, SiO2)

sedimentary
Crinaudite / Fossilized Crinoid Stem (Crinoid (Echinodermata) in a Calcitic/Siliceous Matrix) — sedimentary

Crinaudite / Fossilized Crinoid Stem

Crinoid (Echinodermata) in a Calcitic/Siliceous Matrix

sedimentary
Limestone (Calcium carbonate rock (CaCO3)) — sedimentary

Limestone

Calcium carbonate rock (CaCO3)

sedimentary
Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

sedimentary
Limestone (Sedimentary Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Sedimentary Calcium Carbonate (CaCO3)

sedimentary
Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

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

Limestone

Sedimentary rock composed of Calcium Carbonate (CaCO3)

sedimentary
Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

sedimentary
Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

sedimentary
Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

sedimentary