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

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

Flint Nodule

Chert (Cryptocrystalline Quartz, SiO2)

sedimentary
Geode with Quartz and Iron Oxide (Silicon dioxide with iron oxide inclusions (SiO2)) — sedimentary

Geode with Quartz and Iron Oxide

Silicon dioxide with iron oxide inclusions (SiO2)

sedimentary
Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

sedimentary
Jasper (Silicon dioxide (SiO2)) — sedimentary

Jasper

Silicon dioxide (SiO2)

sedimentary
Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

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

Blue Calcite

Calcium Carbonate (CaCO3)

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

Quartz Pebble

Silicon Dioxide (SiO2)

mineral
Honey calcite (likely) (Calcite, CaCO₃) — mineral

Honey calcite (likely)

Calcite, CaCO₃

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

Hematite

Iron(III) oxide (Fe2O3)

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

Orange Calcite

Calcium Carbonate (CaCO3)

mineral
Limonite (Iron Ore) (Goethite and related iron hydroxides (FeO(OH)·nH2O)) — mineral

Limonite (Iron Ore)

Goethite and related iron hydroxides (FeO(OH)·nH2O)

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

Limestone with Calcite Veining

Calcium Carbonate (CaCO3) - Biogenic/Chemical Sedimentary Rock

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

Blue Aragonite

Aragonite (Calcium Carbonate, CaCO3)

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

Orange Calcite

Calcium Carbonate (CaCO3)

mineral
Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

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

Jasper Pebble

Microcrystalline Quartz (SiO2)

sedimentary
Limonite / Ironstone Concretions (Hydrated iron(III) oxide-hydroxide (FeO(OH)·nH2O)) — sedimentary

Limonite / Ironstone Concretions

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

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

Iceland Spar (Optical Calcite)

Calcite (CaCO3)

mineral
Porous limestone (likely calcareous stone) (Limestone, chiefly calcite (CaCO₃); exact identification is uncertain from the image) — sedimentary

Porous limestone (likely calcareous stone)

Limestone, chiefly calcite (CaCO₃); exact identification is uncertain from the image

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

Probable limestone bedrock

Limestone, composed chiefly of calcite (CaCO₃)

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

Chert (Green)

Silicon Dioxide (SiO2)

sedimentary
Chert (with Patina) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (with Patina)

Microcrystalline Quartz (SiO2)

sedimentary
Chert (with Quartz Veining) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (with Quartz Veining)

Microcrystalline Quartz (SiO2)

sedimentary
Aragonite (Banded Calcite / 'Mexican Onyx') (Aragonite (Calcium Carbonate - CaCO3)) — mineral

Aragonite (Banded Calcite / 'Mexican Onyx')

Aragonite (Calcium Carbonate - CaCO3)

mineral
Calcite (with iron oxide staining) (Calcium Carbonate (CaCO3)) — mineral

Calcite (with iron oxide staining)

Calcium Carbonate (CaCO3)

mineral
Quartz Crystal on Matrix (Silicon Dioxide (SiO2)) — mineral

Quartz Crystal on Matrix

Silicon Dioxide (SiO2)

mineral
Limonite on Sandstone (Iron Oxyhydroxide (FeO(OH)·nH2O) on Quartz Sandstone) — sedimentary

Limonite on Sandstone

Iron Oxyhydroxide (FeO(OH)·nH2O) on Quartz Sandstone

sedimentary
Banded Calcite (Onyx Marble / Green Onyx) (Travertine / Banded Calcite (CaCO3) or Aragonite) — sedimentary

Banded Calcite (Onyx Marble / Green Onyx)

Travertine / Banded Calcite (CaCO3) or Aragonite

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

Limonite (Iron Ore)

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

sedimentary
Fluorite (Calcium Fluoride (CaF2)) — mineral

Fluorite

Calcium Fluoride (CaF2)

mineral
Jasper (Cryptocrystalline Quartz (SiO2)) — sedimentary

Jasper

Cryptocrystalline Quartz (SiO2)

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

Blue Calcite

Calcium Carbonate (CaCO3)

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

Red Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

sedimentary