Rock Identifier

Category

Sedimentary (Chemically Precipitated) Or Metamorphic

Browse sedimentary (chemically precipitated) or metamorphic specimens identified by the Rock Identifier community.

Learn about Sedimentary (Chemically Precipitated) Or Metamorphic in the encyclopedia

Conglomerate

Quartzite Sandstone

Quartzite Sandstone

Metabasalt

Eulysite

Breccia

Ironstone

Anthracite

Metaquartzite

Slate

Marble

Hornfels

Metarhyolite

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Sandstone (with iron staining) (Quartz Arenite / Ferruginous Sandstone) — sedimentary

Sandstone (with iron staining)

Quartz Arenite / Ferruginous Sandstone

Quartz with Iron Stains (Quartz (SiO2) with iron oxide/hydroxide staining) — Mineral

Quartz with Iron Stains

Quartz (SiO2) with iron oxide/hydroxide staining

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Charoite (Charoite (Complex silicate mineral rock)) — metamorphic

Charoite

Charoite (Complex silicate mineral rock)

Generic Pebble / Small Rock Fragment (Lithic fragment / Weathered rock particle) — sedimentary

Generic Pebble / Small Rock Fragment

Lithic fragment / Weathered rock particle

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Conglomerate (Conglomerate) — sedimentary

Conglomerate

Conglomerate

Quartzite Cobble (Metamorphosed Quartz Sandstone (SiO2)) — metamorphic

Quartzite Cobble

Metamorphosed Quartz Sandstone (SiO2)

Quartzite Pebble (Metamorphosed Quartz Sandstone (SiO2)) — metamorphic

Quartzite Pebble

Metamorphosed Quartz Sandstone (SiO2)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Tiger's Eye (Brown/Dark variety) (Pseudomorph of Quartz after Crocidolite (SiO2 with inclusions)) — metamorphic

Tiger's Eye (Brown/Dark variety)

Pseudomorph of Quartz after Crocidolite (SiO2 with inclusions)

Anthracite Coal (Anthracite (Carbon C)) — metamorphic

Anthracite Coal

Anthracite (Carbon C)

Quartz (likely) (Quartz (SiO2 - Silicon Dioxide)) — Mineral

Quartz (likely)

Quartz (SiO2 - Silicon Dioxide)

Quartz (Quartz (SiO₂)) — Mineral

Quartz

Quartz (SiO₂)

Quartz (Small Grains) (Silicon Dioxide (SiO2)) — mineral

Quartz (Small Grains)

Silicon Dioxide (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Sandstone with Iron Concretion (Arenite with Limonite/Goethite Concretion) — sedimentary

Sandstone with Iron Concretion

Arenite with Limonite/Goethite Concretion

Quartz pebble (Quartz (Silicon Dioxide, SiO2)) — mineral

Quartz pebble

Quartz (Silicon Dioxide, SiO2)

Sandstone Concretion (Clastic sedimentary rock (primarily Quartz SiO2 with mineral cement)) — sedimentary

Sandstone Concretion

Clastic sedimentary rock (primarily Quartz SiO2 with mineral cement)

Druzy Quartz (on Quartzite or Chert) (Silicon Dioxide (SiO2)) — mineral

Druzy Quartz (on Quartzite or Chert)

Silicon Dioxide (SiO2)

Agate (translucent water-worn pebble) (Cryptocrystalline Quartz (SiO2)) — sedimentary

Agate (translucent water-worn pebble)

Cryptocrystalline Quartz (SiO2)

Quartz Geode (Silicon Dioxide (SiO2) in a concretion) — sedimentary

Quartz Geode

Silicon Dioxide (SiO2) in a concretion

Calcite (Calcite (CaCO3)) — Mineral

Calcite

Calcite (CaCO3)

Quartz with Inclusions (Silicon Dioxide (SiO2)) — mineral

Quartz with Inclusions

Silicon Dioxide (SiO2)

Quartz (Pink / Rose Quartz variant) (Silicon Dioxide (SiO2)) — mineral

Quartz (Pink / Rose Quartz variant)

Silicon Dioxide (SiO2)

Chalcopyrite (Copper Iron Sulfide (CuFeS2)) — mineral

Chalcopyrite

Copper Iron Sulfide (CuFeS2)

Agate (SiO2 (Chalcedony/Quartz)) — sedimentary

Agate

SiO2 (Chalcedony/Quartz)

Red Calcite (Calcium Carbonate (CaCO3)) — mineral

Red Calcite

Calcium Carbonate (CaCO3)

Hematite (Iron Oxide (Fe2O3)) — mineral

Hematite

Iron Oxide (Fe2O3)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Rhodochrosite (Rhodochrosite, Manganese Carbonate (MnCO3)) — mineral

Rhodochrosite

Rhodochrosite, Manganese Carbonate (MnCO3)

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

Pyrite in Matrix (Fool's Gold)

Iron Sulfide (FeS2)

Bauxite (Bauxite (Al2O3·2H2O)) — sedimentary

Bauxite

Bauxite (Al2O3·2H2O)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Bauxite (Bauxite (principal ore of aluminum, primarily Al(OH)3)) — sedimentary

Bauxite

Bauxite (principal ore of aluminum, primarily Al(OH)3)

Bauxite (Bauxite (Al2O3·nH2O)) — sedimentary

Bauxite

Bauxite (Al2O3·nH2O)

Bauxite (Bauxite (Al2O3·nH2O)) — sedimentary

Bauxite

Bauxite (Al2O3·nH2O)

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

Halite (Halite (NaCl)) — mineral

Halite

Halite (NaCl)

Peridotite (with Olivine) (Peridotite (dominantly (Mg, Fe)2SiO4)) — igneous

Peridotite (with Olivine)

Peridotite (dominantly (Mg, Fe)2SiO4)