Rock Identifier

Category

Limestone

Browse limestone specimens identified by the Rock Identifier community.

Learn about Limestone in the encyclopedia

Limestone

Lithographic Limestone

Oolitic Limestone

Oolitic Limestone

Fossiliferous Limestone

Fossiliferous Limestone

Chalky Limestone

Crinoidal Limestone

Crinoidal Limestone

Shelly Limestone

Shelly Limestone

Micrite

Calcirudite

Coral Rock

Coquina

Chalk

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Limestone (Sedimentary Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Sedimentary Calcium Carbonate (CaCO3)

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

Gray Limestone

Calcite-rich Sedimentary Rock (CaCO3)

Fossiliferous Limestone (Calcium Carbonate (CaCO3) with Bioclasts) — sedimentary

Fossiliferous Limestone

Calcium Carbonate (CaCO3) with Bioclasts

Likely chert or weathered limestone fragment (Microcrystalline quartz (SiO₂) or calcitic limestone (CaCO₃); identification is limited by the blurred image) — sedimentary

Likely chert or weathered limestone fragment

Microcrystalline quartz (SiO₂) or calcitic limestone (CaCO₃); identification is limited by the blurred image

Limestone (specifically Fossiliferous or Crinoidal Limestone) (Calcium Carbonate (CaCO3) - Calcite Rock) — sedimentary

Limestone (specifically Fossiliferous or Crinoidal Limestone)

Calcium Carbonate (CaCO3) - Calcite Rock

Blue Calcite (Calcium Carbonate (CaCO3)) — mineral

Blue Calcite

Calcium Carbonate (CaCO3)

Polished fossiliferous limestone (probable crinoidal limestone) (Calcite-rich limestone; chiefly CaCO₃, with possible crinoid fossil fragments) — sedimentary

Polished fossiliferous limestone (probable crinoidal limestone)

Calcite-rich limestone; chiefly CaCO₃, with possible crinoid fossil fragments

Flint in Limestone (Chert Nodule) (Sedimentary rock containing microcrystalline quartz (SiO2) within a carbonate matrix) — sedimentary

Flint in Limestone (Chert Nodule)

Sedimentary rock containing microcrystalline quartz (SiO2) within a carbonate matrix

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

Chert (Banded)

Microcrystalline Quartz (SiO2)

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

Limestone Gravel

Sedimentary Calcium Carbonate (CaCO3)

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

Fossiliferous Limestone

Calcium Carbonate (CaCO3) with Biogenic Inclusions

Limestone (Sedimentary Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Sedimentary Calcium Carbonate (CaCO3)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Limestone (Calcareous sedimentary rock (CaCO3)) — sedimentary

Limestone

Calcareous sedimentary rock (CaCO3)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Limestone (Sedimentary Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Sedimentary Calcium Carbonate (CaCO3)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Probable limestone bedrock (Limestone, composed chiefly of calcite (CaCO₃)) — sedimentary

Probable limestone bedrock

Limestone, composed chiefly of calcite (CaCO₃)

Chert or silicified limestone (uncertain) (Microcrystalline quartz (SiO₂), possibly calcitic limestone (CaCO₃)) — sedimentary

Chert or silicified limestone (uncertain)

Microcrystalline quartz (SiO₂), possibly calcitic limestone (CaCO₃)

Light-colored limestone (Calcitic limestone; primarily calcium carbonate (CaCO₃), mineral calcite) — sedimentary

Light-colored limestone

Calcitic limestone; primarily calcium carbonate (CaCO₃), mineral calcite

Fossiliferous Limestone (Calcium Carbonate (CaCO3) matrix with biogenic fragments) — fossil

Fossiliferous Limestone

Calcium Carbonate (CaCO3) matrix with biogenic fragments

Fossiliferous Limestone (Biogenic Limestone (Calcium Carbonate, CaCO3)) — sedimentary

Fossiliferous Limestone

Biogenic Limestone (Calcium Carbonate, CaCO3)

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

Limestone with Fossil Inclusion

Sedimentary Calcium Carbonate (CaCO3)

Gray Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Gray Limestone

Calcium Carbonate (CaCO3)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Weathered limestone (Calcite-rich limestone, primarily calcium carbonate (CaCO₃)) — sedimentary

Weathered limestone

Calcite-rich limestone, primarily calcium carbonate (CaCO₃)

Limestone (Limestone (CaCO3)) — sedimentary

Limestone

Limestone (CaCO3)

Limestone (Limestone (CaCO3)) — sedimentary

Limestone

Limestone (CaCO3)

Limestone (Limestone (CaCO3)) — sedimentary

Limestone

Limestone (CaCO3)

Chert (Flint) (Chert (SiO2)) — sedimentary

Chert (Flint)

Chert (SiO2)

Chert (or Limestone) (Sedimentary Cryptocrystalline Quartz (SiO2) or Calcium Carbonate (CaCO3)) — sedimentary

Chert (or Limestone)

Sedimentary Cryptocrystalline Quartz (SiO2) or Calcium Carbonate (CaCO3)

Lapis Lazuli (Lapis Lazuli (Rock containing Lazurite, Calcite, and Pyrite)) — metamorphic

Lapis Lazuli

Lapis Lazuli (Rock containing Lazurite, Calcite, and Pyrite)

Lapis Lazuli (Lapis Lazuli (Mineral composition: Lazurite (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, Calcite, and Pyrite)) — metamorphic

Lapis Lazuli

Lapis Lazuli (Mineral composition: Lazurite (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, Calcite, and Pyrite)

Limestone with Fossil (Sedimentary limestone, calcium carbonate (CaCO3)) — sedimentary

Limestone with Fossil

Sedimentary limestone, calcium carbonate (CaCO3)

Weathered limestone outcrop (Limestone, predominantly calcite (CaCO₃); exact variety cannot be determined from the image) — sedimentary

Weathered limestone outcrop

Limestone, predominantly calcite (CaCO₃); exact variety cannot be determined from the image

Chert Concretion (Silicon dioxide (SiO2)) — sedimentary

Chert Concretion

Silicon dioxide (SiO2)

Fossilized Crinoid Stem in Matrix (Crinoid (Class: Crinoidea)) — fossil

Fossilized Crinoid Stem in Matrix

Crinoid (Class: Crinoidea)