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

Quartz vein rock (milky quartz) (Milky quartz, SiO₂; likely quartz-rich vein material in altered host rock) — igneous

Quartz vein rock (milky quartz)

Milky quartz, SiO₂; likely quartz-rich vein material in altered host rock

Gold Ore (Native Gold (Au)) — mineral

Gold Ore

Native Gold (Au)

Milky calcite (Calcite (CaCO₃), likely a cleavage fragment) — mineral

Milky calcite

Calcite (CaCO₃), likely a cleavage fragment

Botryoidal pyrite (likely with quartz or chlorite matrix) (Pyrite, FeS₂; botryoidal aggregate) — mineral

Botryoidal pyrite (likely with quartz or chlorite matrix)

Pyrite, FeS₂; botryoidal aggregate

Quartzite Geode (unopened) (SiO2 (Silicon Dioxide)) — metamorphic

Quartzite Geode (unopened)

SiO2 (Silicon Dioxide)

Carnelian (Carnelian (variety of Chalcedony, SiO2)) — mineral

Carnelian

Carnelian (variety of Chalcedony, SiO2)

Jasper (Silica (SiO2) with impurities) — Sedimentary/Mineral

Jasper

Silica (SiO2) with impurities

Sedimentary/Mineral

Fossiliferous Limestone (Limestone (CaCO3 with Limonite/Goethite staining)) — sedimentary

Fossiliferous Limestone

Limestone (CaCO3 with Limonite/Goethite staining)

Banded Iron Formation (BIF) / Jasper (Banded Iron Formation (SiO2 with Fe2O3 / Fe3O4)) — sedimentary

Banded Iron Formation (BIF) / Jasper

Banded Iron Formation (SiO2 with Fe2O3 / Fe3O4)

Limestone (specifically Fossiliferous or Crinoidal Limestone) (Calcium Carbonate (CaCO3) - Calcite Rock) — sedimentary

Limestone (specifically Fossiliferous or Crinoidal Limestone)

Calcium Carbonate (CaCO3) - Calcite Rock

Clear quartz crystal (Quartz (silicon dioxide, SiO₂), likely milky or included rock crystal) — mineral

Clear quartz crystal

Quartz (silicon dioxide, SiO₂), likely milky or included rock crystal

Yellow Jasper (Chert) (Silicon Dioxide (SiO2) with Iron Oxide impurities) — mineral

Yellow Jasper (Chert)

Silicon Dioxide (SiO2) with Iron Oxide impurities

Orange Calcite (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite

Calcium Carbonate (CaCO3)

Chert (Flint / Chalcedony pebble) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Flint / Chalcedony pebble)

Silicon Dioxide (SiO2)

Native Copper (Copper (Cu)) — mineral

Native Copper

Copper (Cu)

Agate (Carnelian/Chalcedony) (Silicon Dioxide (SiO2)) — mineral

Agate (Carnelian/Chalcedony)

Silicon Dioxide (SiO2)

Agate Geode (Silicon Dioxide (SiO2) - Chalcedony variety) — sedimentary

Agate Geode

Silicon Dioxide (SiO2) - Chalcedony variety

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

Chert (Banded)

Silicon Dioxide (SiO2)

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

Quartz Druze on Matrix

Silicon Dioxide (SiO2)

Calcite (Calcium Carbonate (CaCO3)) — mineral

Calcite

Calcium Carbonate (CaCO3)

Botryoidal calcite (likely honey calcite) (Calcite — calcium carbonate, CaCO₃) — mineral

Botryoidal calcite (likely honey calcite)

Calcite — calcium carbonate, CaCO₃

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

Travertine (Tufa)

Chemical Limestone (CaCO3)

Dyed Agate Geode (Silicon Dioxide (SiO2) - Banded Chalcedony) — mineral

Dyed Agate Geode

Silicon Dioxide (SiO2) - Banded Chalcedony

Banded iron formation (ironstone), likely hematite–magnetite-rich (Banded iron formation (BIF); chiefly hematite (Fe₂O₃), magnetite (Fe₃O₄), and quartz (SiO₂)) — metamorphic

Banded iron formation (ironstone), likely hematite–magnetite-rich

Banded iron formation (BIF); chiefly hematite (Fe₂O₃), magnetite (Fe₃O₄), and quartz (SiO₂)

Flint (variety of Chert) (Silicon Dioxide (SiO2)) — sedimentary

Flint (variety of Chert)

Silicon Dioxide (SiO2)

Banded Iron Formation (Banded Iron Formation (BIF)) — Sedimentary

Banded Iron Formation

Banded Iron Formation (BIF)

Banded iron formation (BIF) fragment (Metamorphosed iron formation; alternating hematite/magnetite and chert (SiO₂) layers) — metamorphic

Banded iron formation (BIF) fragment

Metamorphosed iron formation; alternating hematite/magnetite and chert (SiO₂) layers

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

Calcite

Calcite (Calcium Carbonate, CaCO3)

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

Chert (or Flint)

Chert (SiO2)

Quartz pebble (Silicon dioxide (SiO2)) — sedimentary

Quartz pebble

Silicon dioxide (SiO2)

Green Fluorite (Fluorite (Calcium Fluoride, CaF2)) — mineral

Green Fluorite

Fluorite (Calcium Fluoride, CaF2)

Greywacke with Quartz Veins (Lithic Sandstone (Greywacke) with SiO2 inclusions) — sedimentary

Greywacke with Quartz Veins

Lithic Sandstone (Greywacke) with SiO2 inclusions

Jasper Geode (Silicon Dioxide (SiO2) with impurities) — sedimentary

Jasper Geode

Silicon Dioxide (SiO2) with impurities

Iron-rich rock or Concretion (Ironstone or Limonite concretion) — sedimentary

Iron-rich rock or Concretion

Ironstone or Limonite concretion

Orange Calcite (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite

Calcium Carbonate (CaCO3)

Banded Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Banded Chert

Microcrystalline Quartz (SiO2)

Concretion, likely ironstone or sandstone concretion (Diagenetic mineral concretion, commonly quartz/calcite cement with iron oxides (goethite/hematite)) — sedimentary

Concretion, likely ironstone or sandstone concretion

Diagenetic mineral concretion, commonly quartz/calcite cement with iron oxides (goethite/hematite)

Blue chalcedony cabochon (likely dyed) (Microcrystalline quartz, SiO₂ (chalcedony)) — gemstone

Blue chalcedony cabochon (likely dyed)

Microcrystalline quartz, SiO₂ (chalcedony)

Chalcedony (Carnelian / Agate pebble) (Microcrystalline Quartz (SiO2)) — mineral

Chalcedony (Carnelian / Agate pebble)

Microcrystalline Quartz (SiO2)

Clear Quartz (Silicon dioxide (SiO2)) — mineral

Clear Quartz

Silicon dioxide (SiO2)

Quartz Crystal (Rough) (Silicon Dioxide (SiO2)) — mineral

Quartz Crystal (Rough)

Silicon Dioxide (SiO2)

Quartz (Silicon dioxide (SiO2)) — mineral

Quartz

Silicon dioxide (SiO2)