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

Polished blue calcite (likely) (Calcite, CaCO₃) — mineral

Polished blue calcite (likely)

Calcite, CaCO₃

Carnelian (a variety of Chalcedony) (SiO2 (Silicon Dioxide) primarily colored by iron oxide (Hematite)) — mineral

Carnelian (a variety of Chalcedony)

SiO2 (Silicon Dioxide) primarily colored by iron oxide (Hematite)

Hematite (Hematite (Fe2O3)) — mineral

Hematite

Hematite (Fe2O3)

Chert (Jasper/Mudstone variety with Oxidation) (Silicon dioxide (SiO2)) — sedimentary

Chert (Jasper/Mudstone variety with Oxidation)

Silicon dioxide (SiO2)

Dendritic Limestone (Calcite with Manganese Oxide (Manganese Dendrites)) — sedimentary

Dendritic Limestone

Calcite with Manganese Oxide (Manganese Dendrites)

Banded Sandstone (Liesegang Rings) (Sedimentary sandstone with Iron oxide precipitates) — sedimentary

Banded Sandstone (Liesegang Rings)

Sedimentary sandstone with Iron oxide precipitates

Quartz-rich metamorphic rock, likely milky quartz or quartzite (Quartz (SiO₂); possibly quartzite composed predominantly of recrystallized quartz) — metamorphic

Quartz-rich metamorphic rock, likely milky quartz or quartzite

Quartz (SiO₂); possibly quartzite composed predominantly of recrystallized quartz

Banded Iron Formation (BIF) (Banded Iron Formation (Magnetite/Hematite-Chert)) — sedimentary

Banded Iron Formation (BIF)

Banded Iron Formation (Magnetite/Hematite-Chert)

Moqui Marble (Iron Oxide Concretion (Limonite/Hematite over Sandstone)) — sedimentary

Moqui Marble

Iron Oxide Concretion (Limonite/Hematite over Sandstone)

Orange Calcite (Polished Point) (Calcium carbonate (CaCO3)) — mineral

Orange Calcite (Polished Point)

Calcium carbonate (CaCO3)

Orange Calcite (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite

Calcium Carbonate (CaCO3)

Polished brown chert or jasper pebble (Microcrystalline quartz (SiO₂), likely iron-stained chert/jasper) — sedimentary

Polished brown chert or jasper pebble

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

Iron-rich breccia (likely hematite–goethite breccia) (Hematite (Fe₂O₃) and goethite (FeO(OH)) in a silicified or iron-cemented breccia) — sedimentary

Iron-rich breccia (likely hematite–goethite breccia)

Hematite (Fe₂O₃) and goethite (FeO(OH)) in a silicified or iron-cemented breccia

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

Milky quartz crystal cluster

Quartz, silicon dioxide (SiO₂)

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

Milky quartz

Quartz (silicon dioxide, SiO₂)

Calcite (Calcite (CaCO
3)) — Mineral

Calcite

Calcite (CaCO 3)

Orange Calcite (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite

Calcium Carbonate (CaCO3)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

White calcite fragment (likely limestone or marble) (Calcite, calcium carbonate (CaCO₃); exact host rock is uncertain from the image) — mineral

White calcite fragment (likely limestone or marble)

Calcite, calcium carbonate (CaCO₃); exact host rock is uncertain from the image

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

Orange Calcite

Calcite (Calcium Carbonate, CaCO3)

Chert (Chert (Microcrystalline Quartz)) — sedimentary

Chert

Chert (Microcrystalline Quartz)

Ferruginous Sandstone (Ironstone) (Iron-rich Arenite) — sedimentary

Ferruginous Sandstone (Ironstone)

Iron-rich Arenite

Quartz (SiO2 (Silicon Dioxide)) — mineral

Quartz

SiO2 (Silicon Dioxide)

Yellow Quartz (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz

Silicon Dioxide (SiO2)

Green Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Green Jasper

Microcrystalline Quartz (SiO2)

Quartz Crystal (Silicon Dioxide (SiO2)) — mineral

Quartz Crystal

Silicon Dioxide (SiO2)

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

Celestite (Celestine)

Strontium Sulfate (SrSO4)

Jasper Pebble (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper Pebble

Microcrystalline Quartz (SiO2)

Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

Jasper Beads (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper Beads

Microcrystalline Quartz (SiO2)

Banded iron formation (likely iron-rich metamorphic rock) (Banded iron formation; hematite–magnetite with chert/jasper (Fe₂O₃/Fe₃O₄ and SiO₂)) — metamorphic

Banded iron formation (likely iron-rich metamorphic rock)

Banded iron formation; hematite–magnetite with chert/jasper (Fe₂O₃/Fe₃O₄ and SiO₂)

Botryoidal Chalcedony (Chalcedony (SiO2)) — Mineral

Botryoidal Chalcedony

Chalcedony (SiO2)

Bog Iron / Limonite Concretion (Goethite/Limonite mixture (FeO(OH)·nH2O)) — sedimentary

Bog Iron / Limonite Concretion

Goethite/Limonite mixture (FeO(OH)·nH2O)

Raw pink chalcedony (likely pink agate/jasper) (Microcrystalline quartz, SiO₂ (chalcedony); impurities may include iron oxides and other silicates) — mineral

Raw pink chalcedony (likely pink agate/jasper)

Microcrystalline quartz, SiO₂ (chalcedony); impurities may include iron oxides and other silicates

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

Quartz Geode Pebble

Silicon Dioxide (SiO2)

Iron-stained chert or siliceous sedimentary rock (Microcrystalline quartz (SiO₂), likely chert with iron-oxide staining) — sedimentary

Iron-stained chert or siliceous sedimentary rock

Microcrystalline quartz (SiO₂), likely chert with iron-oxide staining

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

Tufa (Calcareous Tufa)

Calcareous Tufa (Precipitated CaCO3)

Polished banded chert (Chert (microcrystalline quartz, SiO₂), likely banded jasper/chert) — sedimentary

Polished banded chert

Chert (microcrystalline quartz, SiO₂), likely banded jasper/chert

Oolite (Ooid Limestone) (Ooidal Limestone (comprised of CaCO3)) — sedimentary

Oolite (Ooid Limestone)

Ooidal Limestone (comprised of CaCO3)