Rock Identifier

Category

Sedimentary (Chemically Precipitated)

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

Learn about Sedimentary (Chemically Precipitated) in the encyclopedia

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Sinter

Sinter

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

Fossiliferous Limestone

Calcium Carbonate (CaCO3) with Biogenic Inclusions

sedimentary
Chert (Green Chert or Jasper) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Green Chert or Jasper)

Silicon Dioxide (SiO2)

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

Chert (Flint)

Chert (SiO2)

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

Chert (Flint) Nodule

Microcrystalline or Cryptocrystalline Quartz (SiO2)

sedimentary
Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Chert

Microcrystalline Quartz (SiO2)

sedimentary
Banded Jasper (Silicon Dioxide (SiO2) with iron oxide inclusions) — sedimentary

Banded Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

sedimentary
Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

mineral
Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

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

Honey Calcite

Calcite (Calcium Carbonate, CaCO3)

mineral
Optical Calcite (Calcium Carbonate (CaCO3)) — mineral

Optical Calcite

Calcium Carbonate (CaCO3)

mineral
Limonite or Ironstone Concretion (FeO(OH)·nH₂O (Hydrated iron oxide-hydroxide)) — mineral

Limonite or Ironstone Concretion

FeO(OH)·nH₂O (Hydrated iron oxide-hydroxide)

mineral
Blue Calcite (Calcium Carbonate (CaCO3)) — mineral

Blue Calcite

Calcium Carbonate (CaCO3)

mineral
Blue Chalcedony (Chalcedony (cryptocrystalline Silicon Dioxide - SiO2)) — mineral

Blue Chalcedony

Chalcedony (cryptocrystalline Silicon Dioxide - SiO2)

mineral
Banded Jasper with Hematite or Quartz (Silicon Dioxide (SiO2) with impurities) — sedimentary

Banded Jasper with Hematite or Quartz

Silicon Dioxide (SiO2) with impurities

sedimentary
Calcite (Calcium Carbonate (CaCO3)) — mineral

Calcite

Calcium Carbonate (CaCO3)

mineral
Chert (Nodular Chert) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Nodular Chert)

Microcrystalline Quartz (SiO2)

sedimentary
Limonite (Iron Ore) (Hydrated iron(III) oxide-hydroxide (FeO(OH)·nH2O)) — mineral

Limonite (Iron Ore)

Hydrated iron(III) oxide-hydroxide (FeO(OH)·nH2O)

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

Blue Calcite

Calcite (Calcium Carbonate, CaCO3)

mineral
Chert (Hagstone / Lucky Stone) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Hagstone / Lucky Stone)

Microcrystalline Quartz (SiO2)

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

Light-colored limestone

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

sedimentary
Blue Calcite (Calcium Carbonate (CaCO3)) — mineral

Blue Calcite

Calcium Carbonate (CaCO3)

mineral
Iceland Spar (Optical Calcite) (Calcite (CaCO3)) — mineral

Iceland Spar (Optical Calcite)

Calcite (CaCO3)

mineral
Chert (Chert (SiO2)) — sedimentary

Chert

Chert (SiO2)

sedimentary
Chert (Polished/Tumbled) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Polished/Tumbled)

Silicon Dioxide (SiO2)

sedimentary
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)

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

Limestone Pebble

Calcium Carbonate (CaCO3)

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

Flint Nodule

Chert (Cryptocrystalline Quartz, SiO2)

sedimentary
Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

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

Chert (Pebble)

Microcrystalline Quartz (SiO2)

sedimentary
Orange Calcite (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite

Calcium Carbonate (CaCO3)

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

Chert (Flint pebble)

Microcrystalline Quartz (SiO2)

sedimentary
Orange Calcite (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite

Calcium Carbonate (CaCO3)

mineral
Blue Aragonite (Aragonite (Calcium Carbonate, CaCO3)) — mineral

Blue Aragonite

Aragonite (Calcium Carbonate, CaCO3)

mineral
Hematite (Iron(III) oxide (Fe2O3)) — mineral

Hematite

Iron(III) oxide (Fe2O3)

mineral
Orange Calcite (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite

Calcium Carbonate (CaCO3)

mineral
Fluorite (Calcium Fluoride (CaF2)) — mineral

Fluorite

Calcium Fluoride (CaF2)

mineral
Jasper (Cryptocrystalline Quartz (SiO2)) — sedimentary

Jasper

Cryptocrystalline Quartz (SiO2)

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

Chert Arrowhead (Lithic Tool)

Microcrystalline quartz (SiO2) - Archeological lithic artifact

sedimentary
Hematite (Ironstone) Nodule (Hematite (Fe2O3)) — mineral

Hematite (Ironstone) Nodule

Hematite (Fe2O3)

mineral
Orange Calcite (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite

Calcium Carbonate (CaCO3)

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

Green Calcite

Calcium Carbonate (CaCO3)

mineral
Orange Calcite (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite

Calcium Carbonate (CaCO3)

mineral