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 concretion or weathered ironstone (Goethite–hematite-rich limonite concretion (tentative)) — sedimentary

Iron-rich concretion or weathered ironstone

Goethite–hematite-rich limonite concretion (tentative)

Limonite (Iron Ore) (Hydrated Iron(III) Oxide-Hydroxide (FeO(OH)·nH2O)) — sedimentary

Limonite (Iron Ore)

Hydrated Iron(III) Oxide-Hydroxide (FeO(OH)·nH2O)

Red Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Red Jasper

Microcrystalline Quartz (SiO2)

Caliche (with Lichen Cover) (Calcium carbonate-cemented soil layer (CaCO3)) — sedimentary

Caliche (with Lichen Cover)

Calcium carbonate-cemented soil layer (CaCO3)

Blue calcite (Calcite (CaCO₃)) — mineral

Blue calcite

Calcite (CaCO₃)

Quartz Drusy (on Geode Fragment) (Crystalline Silicon Dioxide (SiO2)) — mineral

Quartz Drusy (on Geode Fragment)

Crystalline Silicon Dioxide (SiO2)

Geode (Unopened) (Quartz Geode (SiO2) / Chalcedony Concretion) — mineral

Geode (Unopened)

Quartz Geode (SiO2) / Chalcedony Concretion

Chalcedony with Druzy Quartz Geode (Silicon Dioxide (SiO2)) — mineral

Chalcedony with Druzy Quartz Geode

Silicon Dioxide (SiO2)

Yellow Jasper (Chert/Quartz Pebble) (Silicon Dioxide (SiO2 with iron oxide inclusions)) — sedimentary

Yellow Jasper (Chert/Quartz Pebble)

Silicon Dioxide (SiO2 with iron oxide inclusions)

Quartz Geode (Silicon Dioxide (SiO2)) — sedimentary

Quartz Geode

Silicon Dioxide (SiO2)

Quartz Geode (Crystalline Silicon Dioxide (SiO2) in Geode form) — sedimentary

Quartz Geode

Crystalline Silicon Dioxide (SiO2) in Geode form

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Quartz with Chlorite inclusions (SiO2 with (Mg,Fe)3(Si,Al)4O10(OH)2⋅(Mg,Fe)3(OH)6) — mineral

Quartz with Chlorite inclusions

SiO2 with (Mg,Fe)3(Si,Al)4O10(OH)2⋅(Mg,Fe)3(OH)6

Chalcedony (likely brown agate or flint) (Microcrystalline quartz, SiO₂; chalcedony, possibly iron-stained) — mineral

Chalcedony (likely brown agate or flint)

Microcrystalline quartz, SiO₂; chalcedony, possibly iron-stained

Chalcedony (Chalcedony (a microcrystalline variety of Quartz, SiO2)) — Mineral

Chalcedony

Chalcedony (a microcrystalline variety of Quartz, SiO2)

Quartz (Milky/Clear variety) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky/Clear variety)

Silicon Dioxide (SiO2)

Sandstone (with Iron Staining) (Clastic sedimentary rock (primarily SiO2 with Fe2O3 staining)) — sedimentary

Sandstone (with Iron Staining)

Clastic sedimentary rock (primarily SiO2 with Fe2O3 staining)

Quartz Pebble (Silicon Dioxide (SiO2)) — sedimentary

Quartz Pebble

Silicon Dioxide (SiO2)

Tumbled dark stone, likely banded iron formation or hematite-rich jasper (Hematite-bearing quartz/jasper; probable iron oxide–silica aggregate) — mineral

Tumbled dark stone, likely banded iron formation or hematite-rich jasper

Hematite-bearing quartz/jasper; probable iron oxide–silica aggregate

Quartz-veined Siltstone (Siltstone with Quartz (SiO2) veins) — sedimentary

Quartz-veined Siltstone

Siltstone with Quartz (SiO2) veins

Chert (Nodule) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Nodule)

Microcrystalline Quartz (SiO2)

Iron-rich concretion (probable hematite/limonite nodule) (Goethite–hematite concretion; FeO(OH) and Fe₂O₃, possibly with quartz/clay) — sedimentary

Iron-rich concretion (probable hematite/limonite nodule)

Goethite–hematite concretion; FeO(OH) and Fe₂O₃, possibly with quartz/clay

Banded Iron Formation (BIF) (Banded Iron Formation (predominantly Hematite Fe2O3 and magnetite Fe3O4 alternating with Chert SiO2)) — sedimentary

Banded Iron Formation (BIF)

Banded Iron Formation (predominantly Hematite Fe2O3 and magnetite Fe3O4 alternating with Chert SiO2)

Quartz-bearing sulfide ore, possibly pyrite in altered host rock (Likely pyrite (FeS₂) with quartz and possibly calcite or carbonate gangue; exact identification requires testing) — mineral

Quartz-bearing sulfide ore, possibly pyrite in altered host rock

Likely pyrite (FeS₂) with quartz and possibly calcite or carbonate gangue; exact identification requires testing

Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

Jasper (Opaque Cryptocrystalline Quartz (SiO2)) — sedimentary

Jasper

Opaque Cryptocrystalline Quartz (SiO2)

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

Quartz Druze on Matrix

Silicon Dioxide (SiO2)

Chert (Yellow/Tan Variety) (Chert (SiO2)) — sedimentary

Chert (Yellow/Tan Variety)

Chert (SiO2)

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

Flint (Chert)

Silicon Dioxide (SiO2)

Yellow Jasper (Chalcedony (SiO2 with iron oxide inclusions)) — sedimentary

Yellow Jasper

Chalcedony (SiO2 with iron oxide inclusions)

Vein-filled Porphyry or Brecciated Jasper Pebble (Brecciated volcanic rock with quartz/calcite veins) — igneous

Vein-filled Porphyry or Brecciated Jasper Pebble

Brecciated volcanic rock with quartz/calcite veins

Travertine (Tufa) (Chemical Sedimentary Rock (CaCO3)) — sedimentary

Travertine (Tufa)

Chemical Sedimentary Rock (CaCO3)

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

Travertine (Tufa)

Chemical Sedimentary Limestone (CaCO3)

Jasper (Silicon dioxide (SiO2)) — sedimentary

Jasper

Silicon dioxide (SiO2)

Honey calcite (optical calcite) (Calcite, calcium carbonate (CaCO₃)) — mineral

Honey calcite (optical calcite)

Calcite, calcium carbonate (CaCO₃)

Blue calcite (probable) (Calcite, CaCO₃) — mineral

Blue calcite (probable)

Calcite, CaCO₃

Quartz Geode (Crystalline Silicon Dioxide (SiO2) in a Geodic Concretion) — mineral

Quartz Geode

Crystalline Silicon Dioxide (SiO2) in a Geodic Concretion

Quartz Geode with Iron Staining (Silicon Dioxide (SiO2) with Limonite/Hematite inclusions) — mineral

Quartz Geode with Iron Staining

Silicon Dioxide (SiO2) with Limonite/Hematite inclusions

Geode (Unopened Keokuk Geode) (Silicon Dioxide (SiO2) - Chalcedony / Quartz exterior) — mineral

Geode (Unopened Keokuk Geode)

Silicon Dioxide (SiO2) - Chalcedony / Quartz exterior

Red Jasper and Mookaite Jasper (Silicon Dioxide (SiO2) with Iron Oxide inclusions) — mineral

Red Jasper and Mookaite Jasper

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Quartz Geode in Sedimentary Matrix (Silicon Dioxide (SiO2) within a limestone/dolostone host) — mineral

Quartz Geode in Sedimentary Matrix

Silicon Dioxide (SiO2) within a limestone/dolostone host

Agate (Beads) (Silicon Dioxide (SiO2)) — mineral

Agate (Beads)

Silicon Dioxide (SiO2)