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

Microcrystalline Limestone (Limestone (CaCO3 with impurities)) — sedimentary

Microcrystalline Limestone

Limestone (CaCO3 with impurities)

Coquina (Biogenic Limestone (Calcitic)) — sedimentary

Coquina

Biogenic Limestone (Calcitic)

Coquina / Fossiliferous Limestone (Bioclastic Limestone (CaCO3)) — sedimentary

Coquina / Fossiliferous Limestone

Bioclastic Limestone (CaCO3)

Fossiliferous Limestone (Biogenic Limestone (CaCO3)) — sedimentary

Fossiliferous Limestone

Biogenic Limestone (CaCO3)

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

Fossiliferous Limestone

Limestone (CaCO3 with Bioclasts)

Fossiliferous Limestone (Biomicrite / Limestone with fossils) — sedimentary

Fossiliferous Limestone

Biomicrite / Limestone with fossils

Coquina (Biogenic Limestone (Coquina)) — sedimentary

Coquina

Biogenic Limestone (Coquina)

Coquina (Limestone) (Bioclastic Limestone (CaCO3)) — sedimentary

Coquina (Limestone)

Bioclastic Limestone (CaCO3)

Travertine (Tufa) (Chemical Limestone (CaCO3)) — sedimentary

Travertine (Tufa)

Chemical Limestone (CaCO3)

Oolitic Limestone (Oolitic Limestone (CaCO3)) — sedimentary

Oolitic Limestone

Oolitic Limestone (CaCO3)

Marble (Metamorphosed Limestone/Dolomite) — metamorphic

Marble

Metamorphosed Limestone/Dolomite

Siltstone or Limestone Beach Pebble (Siltstone / Micritic Limestone) — sedimentary

Siltstone or Limestone Beach Pebble

Siltstone / Micritic Limestone

Limestone with Fossil inclusions (Fossiliferous Limestone (CaCO3)) — sedimentary

Limestone with Fossil inclusions

Fossiliferous Limestone (CaCO3)

Fossiliferous Limestone (Biogenic Limestone (CaCO3)) — sedimentary

Fossiliferous Limestone

Biogenic Limestone (CaCO3)

Fossiliferous Limestone (Bioclastic Limestone (CaCO3)) — sedimentary

Fossiliferous Limestone

Bioclastic Limestone (CaCO3)

Fossiliferous Limestone (with Crinoids/Coral) (Fossiliferous Limestone (CaCO3)) — sedimentary

Fossiliferous Limestone (with Crinoids/Coral)

Fossiliferous Limestone (CaCO3)

Picasso Stone (Metamorphic Limestone (Marble)) — metamorphic

Picasso Stone

Metamorphic Limestone (Marble)

Coquina (Coquina (a type of limestone)) — Sedimentary

Coquina

Coquina (a type of limestone)

Coquina (Coquina (Limestone variant)) — sedimentary

Coquina

Coquina (Limestone variant)

Coquina / Shell Limestone (Coquina (Bioclastic Limestone)) — sedimentary

Coquina / Shell Limestone

Coquina (Bioclastic Limestone)

Fossiliferous Limestone (Coquina / Shell Limestone) (Biogenic Limestone (CaCO3)) — sedimentary

Fossiliferous Limestone (Coquina / Shell Limestone)

Biogenic Limestone (CaCO3)

Coquina (Coquina (Bioclastic Limestone)) — sedimentary

Coquina

Coquina (Bioclastic Limestone)

Travertine (Tufa limestone (CaCO3)) — sedimentary

Travertine

Tufa limestone (CaCO3)

Fossiliferous Limestone (Fossiliferous Limestone (CaCO3)) — sedimentary

Fossiliferous Limestone

Fossiliferous Limestone (CaCO3)

Coquina (Biogenic Limestone (Coquina)) — sedimentary

Coquina

Biogenic Limestone (Coquina)

Fossiliferous Limestone (Fossiliferous Limestone (CaCO3)) — sedimentary

Fossiliferous Limestone

Fossiliferous Limestone (CaCO3)

Coquina (Bioclastic Limestone (CaCO3)) — sedimentary

Coquina

Bioclastic Limestone (CaCO3)

Fossilized Coral (Rugose Coral / Horn Coral) (Rugosa / Scleractinia) — fossil

Fossilized Coral (Rugose Coral / Horn Coral)

Rugosa / Scleractinia

Fossiliferous Limestone with Brachiopod (Phylum Brachiopoda in Sedimentary Matrix (CaCO3)) — fossil

Fossiliferous Limestone with Brachiopod

Phylum Brachiopoda in Sedimentary Matrix (CaCO3)

Brachiopod Fossil in Limestone (Phylum Brachiopoda, Class Rhynchonellata) — sedimentary

Brachiopod Fossil in Limestone

Phylum Brachiopoda, Class Rhynchonellata

Chert with Limestone matrix (Microcrystalline silica (SiO2) in Calcite (CaCO3) matrix) — sedimentary

Chert with Limestone matrix

Microcrystalline silica (SiO2) in Calcite (CaCO3) matrix

Fossil Bivalve Shell (Class Bivalvia (e.g., Veneriidae family)) — sedimentary

Fossil Bivalve Shell

Class Bivalvia (e.g., Veneriidae family)

Fossils in Limestone (Crinoid / Marine Invertebrate Fossil) (Fossiliferous Limestone (containing Crinoidea / Brachiopoda)) — fossil

Fossils in Limestone (Crinoid / Marine Invertebrate Fossil)

Fossiliferous Limestone (containing Crinoidea / Brachiopoda)

Travertine (Terrestrial Sedimentary Limestone (CaCO3)) — sedimentary

Travertine

Terrestrial Sedimentary Limestone (CaCO3)

Galena (Lead Sulfide (PbS)) — mineral

Galena

Lead Sulfide (PbS)

Nephrite Jade / Epidote Pebble (Ca2(Mg,Fe)5Si8O22(OH)2 / Ca2Al2Fe3+(SiO4)(Si2O7)O(OH)) — metamorphic

Nephrite Jade / Epidote Pebble

Ca2(Mg,Fe)5Si8O22(OH)2 / Ca2Al2Fe3+(SiO4)(Si2O7)O(OH)

Barite (Barium sulfate (BaSO4)) — mineral

Barite

Barium sulfate (BaSO4)

Chert (Chert (Microcrystalline Quartz)) — sedimentary

Chert

Chert (Microcrystalline Quartz)

Tiffany Stone (Fluorite-bearing Opalized Breccia) — Rock/Mineralized Nodule

Tiffany Stone

Fluorite-bearing Opalized Breccia

Rock/Mineralized Nodule

Chert (Silicon Dioxide (SiO2)) — sedimentary

Chert

Silicon Dioxide (SiO2)

Fenestella Bryozoan Fossil (Fenestella (class Stenolaemata)) — fossil

Fenestella Bryozoan Fossil

Fenestella (class Stenolaemata)

Marble (Recrystallized Calcite / Metamorphosed Limestone (CaCO3)) — metamorphic

Marble

Recrystallized Calcite / Metamorphosed Limestone (CaCO3)