Rock Identifier

Category

Sedimentary (Physico Chemical Precipitate)

Browse sedimentary (physico chemical precipitate) specimens identified by the Rock Identifier community.

Learn about Sedimentary (Physico Chemical Precipitate) in the encyclopedia

Conglomerate

Quartzite Sandstone

Quartzite Sandstone

Breccia

Ironstone

Sinter

Coal

Kambaba Jasper

Limestone

Asphalt Rock

Claystone

Mudstone

Sapropel

Iron-rich chert or jasper (Microcrystalline quartz (SiO₂), colored by hematite/goethite inclusions) — sedimentary

Iron-rich chert or jasper

Microcrystalline quartz (SiO₂), colored by hematite/goethite inclusions

Liesegang Banded Sandstone (Concretion / Weathered Pebble) (Sandstone showing Liesegang rings / Weathering rind (SiO2 with iron oxides)) — sedimentary

Liesegang Banded Sandstone (Concretion / Weathered Pebble)

Sandstone showing Liesegang rings / Weathering rind (SiO2 with iron oxides)

Peach/orange calcite cluster (Calcite (CaCO₃), likely botryoidal or scalenohedral aggregate) — mineral

Peach/orange calcite cluster

Calcite (CaCO₃), likely botryoidal or scalenohedral aggregate

Turquoise (Hydrated phosphate of copper and aluminium - CuAl6(PO4)4(OH)8·4H2O) — mineral

Turquoise

Hydrated phosphate of copper and aluminium - CuAl6(PO4)4(OH)8·4H2O

Milky or Iron-Stained Quartz (Quartz (Silicon Dioxide, SiO2)) — mineral

Milky or Iron-Stained Quartz

Quartz (Silicon Dioxide, SiO2)

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

Yellow Calcite

Calcite (Calcium Carbonate, CaCO3)

Likely calcite specimen (Calcite, calcium carbonate (CaCO₃)) — mineral

Likely calcite specimen

Calcite, calcium carbonate (CaCO₃)

Carnelian Agate Beads (Silicon Dioxide (SiO2)) — gemstone

Carnelian Agate Beads

Silicon Dioxide (SiO2)

Baryte (Barite) (Barium sulfate (BaSO4)) — mineral

Baryte (Barite)

Barium sulfate (BaSO4)

Geode (unopened) or Calcareous Nodule (Siliceous or Calcareous Concretion/Nodule) — sedimentary

Geode (unopened) or Calcareous Nodule

Siliceous or Calcareous Concretion/Nodule

Milky quartz (quartz crystal) (Quartz, silicon dioxide (SiO₂)) — mineral

Milky quartz (quartz crystal)

Quartz, silicon dioxide (SiO₂)

Banded iron formation (specimen, possibly hematite–jasper) (Banded iron formation; chiefly hematite (Fe₂O₃), magnetite (Fe₃O₄), and silica (chert/quartz), with possible limonite/goethite staining) — sedimentary

Banded iron formation (specimen, possibly hematite–jasper)

Banded iron formation; chiefly hematite (Fe₂O₃), magnetite (Fe₃O₄), and silica (chert/quartz), with possible limonite/goethite staining

Banded Calcite Onyx (Cave Onyx / Mexican Onyx) (Calcite (CaCO3) / Travertine) — sedimentary

Banded Calcite Onyx (Cave Onyx / Mexican Onyx)

Calcite (CaCO3) / Travertine

Light-colored limestone pebble (Calcite-rich limestone (primarily CaCO₃)) — sedimentary

Light-colored limestone pebble

Calcite-rich limestone (primarily CaCO₃)

Banded iron formation (ironstone) (BIF; alternating hematite/magnetite and chert (SiO₂) layers) — sedimentary

Banded iron formation (ironstone)

BIF; alternating hematite/magnetite and chert (SiO₂) layers

Green Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Green Chert

Microcrystalline Quartz (SiO2)

Quartz Vein Specimen (Silicon Dioxide (SiO2)) — mineral

Quartz Vein Specimen

Silicon Dioxide (SiO2)

Banded fluorite tower (Fluorite (calcium fluoride, CaF₂)) — mineral

Banded fluorite tower

Fluorite (calcium fluoride, CaF₂)

Jasper (SiO2) — mineral

Jasper

SiO2

Yellow Quartz (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz

Silicon Dioxide (SiO2)

Agate (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — sedimentary

Agate

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Septarian Nodule (Septarian Concretion (Composition: Calcite, Aragonite, and Limestone/Clay)) — sedimentary

Septarian Nodule

Septarian Concretion (Composition: Calcite, Aragonite, and Limestone/Clay)

Weathered chert or siliceous limestone (Microcrystalline quartz (SiO₂), possibly replacing or cementing carbonate rock) — sedimentary

Weathered chert or siliceous limestone

Microcrystalline quartz (SiO₂), possibly replacing or cementing carbonate rock

Banded iron formation (banded ironstone) (BIF, chiefly hematite/magnetite and microcrystalline quartz (chert); locally limonite/goethite) — sedimentary

Banded iron formation (banded ironstone)

BIF, chiefly hematite/magnetite and microcrystalline quartz (chert); locally limonite/goethite

Polished banded chert or jasper (Microcrystalline quartz (SiO₂), likely iron- and manganese-stained chert/jasper) — sedimentary

Polished banded chert or jasper

Microcrystalline quartz (SiO₂), likely iron- and manganese-stained chert/jasper

Rounded limestone pebble (Limestone, predominantly calcite (CaCO₃)) — sedimentary

Rounded limestone pebble

Limestone, predominantly calcite (CaCO₃)

Calcite-rich limestone (Limestone, predominantly calcium carbonate (CaCO₃), usually calcite) — sedimentary

Calcite-rich limestone

Limestone, predominantly calcium carbonate (CaCO₃), usually calcite

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

Red Jasper Pebble

Microcrystalline Quartz (SiO2)

Banded Onyx (Green Onyx) (Banded Calcite or Travertine (CaCO3)) — Sedimentary

Banded Onyx (Green Onyx)

Banded Calcite or Travertine (CaCO3)

Tufa (Calcareous Tufa (Calcium Carbonate, CaCO3)) — sedimentary

Tufa

Calcareous Tufa (Calcium Carbonate, CaCO3)

Aragonite (Onyx Marble) (Calcium Carbonate (CaCO3), Orthorhombic crystal system) — mineral

Aragonite (Onyx Marble)

Calcium Carbonate (CaCO3), Orthorhombic crystal system

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

Limestone Pebble

Calcite-rich Sedimentary Rock (CaCO3)

Chert (Common Opal/Jasper transition) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Common Opal/Jasper transition)

Silicon Dioxide (SiO2)

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

Pyrite (Fool's Gold)

Iron Sulfide (FeS2)

Quartz Vein in Sandstone (Hydrothermal Quartz (SiO2) in Arenite) — sedimentary

Quartz Vein in Sandstone

Hydrothermal Quartz (SiO2) in Arenite

Rhyolitic jasper or iron-stained chert (Microcrystalline quartz (SiO₂), likely with hematite/goethite staining) — igneous

Rhyolitic jasper or iron-stained chert

Microcrystalline quartz (SiO₂), likely with hematite/goethite staining

Copper-bearing sulfide ore, possibly bornite/chalcopyrite (Likely bornite (Cu5FeS4) and/or chalcopyrite (CuFeS2) in a sulfide-rich host rock) — mineral

Copper-bearing sulfide ore, possibly bornite/chalcopyrite

Likely bornite (Cu5FeS4) and/or chalcopyrite (CuFeS2) in a sulfide-rich host rock

Honey Calcite (Calcium Carbonate (CaCO3)) — mineral

Honey Calcite

Calcium Carbonate (CaCO3)

Light-colored limestone (Calcite-rich limestone (CaCO₃)) — sedimentary

Light-colored limestone

Calcite-rich limestone (CaCO₃)

Polished banded ironstone pebble (Banded iron formation (BIF), chiefly hematite/magnetite and quartz) — sedimentary

Polished banded ironstone pebble

Banded iron formation (BIF), chiefly hematite/magnetite and quartz

Banded ironstone pebble (Banded iron formation (BIF), chiefly quartz/chert and iron oxides; possibly hematite–magnetite-rich jasper) — sedimentary

Banded ironstone pebble

Banded iron formation (BIF), chiefly quartz/chert and iron oxides; possibly hematite–magnetite-rich jasper

Banded iron formation (iron-rich chert), possibly jasper (Banded iron formation; alternating microcrystalline quartz (SiO₂) and iron oxides/hydroxides (hematite, magnetite, goethite)) — sedimentary

Banded iron formation (iron-rich chert), possibly jasper

Banded iron formation; alternating microcrystalline quartz (SiO₂) and iron oxides/hydroxides (hematite, magnetite, goethite)