Rock Identifier

Category

Sedimentary (Chemically Precipitated Mineral)

Browse sedimentary (chemically precipitated mineral) specimens identified by the Rock Identifier community.

Learn about Sedimentary (Chemically Precipitated Mineral) in the encyclopedia

Coal

Conglomerate

Quartzite Sandstone

Quartzite Sandstone

Glauconite

Breccia

Hutcheonite

Halite

Ironstone

Sperrylite

Baddeleyite

Anatase

Brookite

Quartz vein in host rock (Quartz (SiO₂), likely in a weathered carbonate or sedimentary matrix) — mineral

Quartz vein in host rock

Quartz (SiO₂), likely in a weathered carbonate or sedimentary matrix

Banded Calcite (often sold as 'Mexican Onyx' or 'Calcite Onyx') (Calcite (Calcium Carbonate, CaCO3)) — sedimentary

Banded Calcite (often sold as 'Mexican Onyx' or 'Calcite Onyx')

Calcite (Calcium Carbonate, CaCO3)

Limestone Pebble (Calcium Carbonate (CaCO3)) — sedimentary

Limestone Pebble

Calcium Carbonate (CaCO3)

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

Flint Nodule

Chert (Cryptocrystalline Quartz, SiO2)

Red Jasper (Silicon Dioxide with Iron Oxide (SiO2)) — mineral

Red Jasper

Silicon Dioxide with Iron Oxide (SiO2)

Honey calcite crystal (Calcite (calcium carbonate, CaCO₃)) — mineral

Honey calcite crystal

Calcite (calcium carbonate, CaCO₃)

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

Chert (Pebble)

Microcrystalline Quartz (SiO2)

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

Chert (Flint pebble)

Microcrystalline Quartz (SiO2)

Calcite (Calcite (CaCO₃), likely crystalline limestone or marble fragment) — mineral

Calcite

Calcite (CaCO₃), likely crystalline limestone or marble fragment

Agate (Agate (Silicon Dioxide - SiO2)) — mineral

Agate

Agate (Silicon Dioxide - SiO2)

Orange calcite (Calcite (calcium carbonate, CaCO₃)) — mineral

Orange calcite

Calcite (calcium carbonate, CaCO₃)

Golden Calcite (Calcium Carbonate (CaCO3)) — mineral

Golden Calcite

Calcium Carbonate (CaCO3)

Calcite (Calcium Carbonate (CaCO3)) — mineral

Calcite

Calcium Carbonate (CaCO3)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Pyrite (Fool's Gold) (Iron Disulfide (FeS2)) — mineral

Pyrite (Fool's Gold)

Iron Disulfide (FeS2)

Orange Calcite (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite

Calcium Carbonate (CaCO3)

Green Calcite (Calcium Carbonate (CaCO3)) — mineral

Green Calcite

Calcium Carbonate (CaCO3)

Banded Sandstone (Liesegang Rings) (Sedimentary Arenite (SiO2 with FeO/Fe2O3 impurities)) — sedimentary

Banded Sandstone (Liesegang Rings)

Sedimentary Arenite (SiO2 with FeO/Fe2O3 impurities)

Tufa (Calcareous Tufa) (Calcareous Tufa (Precipitated CaCO3)) — sedimentary

Tufa (Calcareous Tufa)

Calcareous Tufa (Precipitated CaCO3)

Jasper (Cryptocrystalline Quartz (SiO2)) — sedimentary

Jasper

Cryptocrystalline Quartz (SiO2)

Chert Arrowhead (Lithic Tool) (Microcrystalline quartz (SiO2) - Archeological lithic artifact) — sedimentary

Chert Arrowhead (Lithic Tool)

Microcrystalline quartz (SiO2) - Archeological lithic artifact

Hematite (Hematite (Fe2O3)) — mineral

Hematite

Hematite (Fe2O3)

Blue calcite (Calcite (CaCO₃), blue variety) — mineral

Blue calcite

Calcite (CaCO₃), blue variety

Tumbled quartz-rich stone, likely marble or calcite (Calcite (CaCO₃), possibly marble) — metamorphic

Tumbled quartz-rich stone, likely marble or calcite

Calcite (CaCO₃), possibly marble

Orange Calcite (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite

Calcium Carbonate (CaCO3)

Orange Calcite (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite

Calcium Carbonate (CaCO3)

Honey Calcite (Calcite (Calcium Carbonate, CaCO3)) — mineral

Honey Calcite

Calcite (Calcium Carbonate, CaCO3)

Yellow Ocher (Limonite) (Limonite (Hydrated Iron Oxide) - FeO(OH)·nH2O) — mineral

Yellow Ocher (Limonite)

Limonite (Hydrated Iron Oxide) - FeO(OH)·nH2O

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Ocean Jasper (Orbicular Jasper (Silicon Dioxide, SiO2)) — sedimentary

Ocean Jasper

Orbicular Jasper (Silicon Dioxide, SiO2)

Quartz Geode / Druzy Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz Geode / Druzy Quartz

Silicon Dioxide (SiO2)

Quartz / Common Opal Transition (Silicon Dioxide (SiO2)) — mineral

Quartz / Common Opal Transition

Silicon Dioxide (SiO2)

Honey calcite crystal fragment (Calcite (CaCO₃), likely honey or amber calcite) — mineral

Honey calcite crystal fragment

Calcite (CaCO₃), likely honey or amber calcite

Polished honey calcite heart (Calcite (calcium carbonate, CaCO₃)) — mineral

Polished honey calcite heart

Calcite (calcium carbonate, CaCO₃)

Limestone with Calcite Veining (Calcium Carbonate (CaCO3) - Biogenic/Chemical Sedimentary Rock) — sedimentary

Limestone with Calcite Veining

Calcium Carbonate (CaCO3) - Biogenic/Chemical Sedimentary Rock

Celestite (Celestine) (Strontium Sulfate (SrSO4)) — mineral

Celestite (Celestine)

Strontium Sulfate (SrSO4)

Honey calcite (likely rough calcite crystal) (Calcite, calcium carbonate (CaCO₃)) — mineral

Honey calcite (likely rough calcite crystal)

Calcite, calcium carbonate (CaCO₃)

Green Calcite (Calcite (Calcium Carbonate, CaCO3)) — mineral

Green Calcite

Calcite (Calcium Carbonate, CaCO3)

Blue calcite (probable) (Calcite — CaCO₃) — mineral

Blue calcite (probable)

Calcite — CaCO₃

Banded iron formation fragment (polished ironstone) (Banded iron formation; hematite/magnetite-rich chert, commonly approximated as Fe₂O₃–Fe₃O₄ with SiO₂) — sedimentary

Banded iron formation fragment (polished ironstone)

Banded iron formation; hematite/magnetite-rich chert, commonly approximated as Fe₂O₃–Fe₃O₄ with SiO₂

Rounded limestone pebble (Calcite-rich limestone (CaCO₃)) — sedimentary

Rounded limestone pebble

Calcite-rich limestone (CaCO₃)

Red calcite (Calcite (CaCO₃), likely iron- or manganese-colored) — mineral

Red calcite

Calcite (CaCO₃), likely iron- or manganese-colored