Rock Identifier

Category

Sedimentary Or Mineral

Browse sedimentary or mineral specimens identified by the Rock Identifier community.

Learn about Sedimentary Or Mineral in the encyclopedia

Coal

Conglomerate

Quartzite Sandstone

Quartzite Sandstone

Glauconite

Breccia

Hutcheonite

Halite

Ironstone

Sperrylite

Baddeleyite

Anatase

Brookite

Quartz-veined Sandstone (Sedimentary rock with quartz vein (SiO2)) — sedimentary

Quartz-veined Sandstone

Sedimentary rock with quartz vein (SiO2)

Sandstone (Sedimentary rock composed mainly of quartz sand-sized minerals) — sedimentary

Sandstone

Sedimentary rock composed mainly of quartz sand-sized minerals

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Citrine (Silicon Dioxide (SiO2)) — mineral

Citrine

Silicon Dioxide (SiO2)

Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

Quartz Geode (Silicon Dioxide (SiO2) in Geodic Cavity) — sedimentary

Quartz Geode

Silicon Dioxide (SiO2) in Geodic Cavity

Limonite Concretion (Limonite (FeO(OH)·nH2O) Pseudomorph) — sedimentary

Limonite Concretion

Limonite (FeO(OH)·nH2O) Pseudomorph

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

Pyrite (Fool's Gold)

Iron Sulfide (FeS2)

Limonite (FeO(OH)·nH2O) — mineral

Limonite

FeO(OH)·nH2O

Limonite Geode / Ironstone Concretion (Hydrated iron oxide-hydroxide (FeO(OH)·n H2O)) — sedimentary

Limonite Geode / Ironstone Concretion

Hydrated iron oxide-hydroxide (FeO(OH)·n H2O)

Galena (Lead sulfide (PbS)) — mineral

Galena

Lead sulfide (PbS)

Green Fluorite (Calcium Fluoride (CaF2)) — mineral

Green Fluorite

Calcium Fluoride (CaF2)

Chalcopyrite (Copper Iron Sulfide (CuFeS2)) — mineral

Chalcopyrite

Copper Iron Sulfide (CuFeS2)

Quartz pebble (Silicon dioxide (SiO2)) — mineral

Quartz pebble

Silicon dioxide (SiO2)

Hematite (Hematite (Fe2O3)) — mineral

Hematite

Hematite (Fe2O3)

Blue Calcite (Calcium Carbonate (CaCO3)) — mineral

Blue Calcite

Calcium Carbonate (CaCO3)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Sandstone (Cut Dimension Stone) (Arenite / Quartzose Sandstone (primarily SiO2)) — sedimentary

Sandstone (Cut Dimension Stone)

Arenite / Quartzose Sandstone (primarily SiO2)

Sandstone Pebble (Quartzose Sandstone) — sedimentary

Sandstone Pebble

Quartzose Sandstone

Quartz pebble (Silicon dioxide (SiO2)) — mineral

Quartz pebble

Silicon dioxide (SiO2)

Quartz pebble (Silicon dioxide (SiO2)) — mineral

Quartz pebble

Silicon dioxide (SiO2)

Ironstone Concretion / Limonite-stained Siltstone (Ironstone (primarily Limonite FeO(OH)·nH2O and Siltstone)) — sedimentary

Ironstone Concretion / Limonite-stained Siltstone

Ironstone (primarily Limonite FeO(OH)·nH2O and Siltstone)

Quartz Vein in Sedimentary Rock (Silicon Dioxide (SiO2) with host Chert or Limestone) — mineral

Quartz Vein in Sedimentary Rock

Silicon Dioxide (SiO2) with host Chert or Limestone

Blue Calcite (Calcium Carbonate, CaCO3) — mineral

Blue Calcite

Calcium Carbonate, CaCO3

Banded sandstone pebble (Quartz-rich sandstone, likely iron-oxide- and organic/mineral-stained; exact variety uncertain) — sedimentary

Banded sandstone pebble

Quartz-rich sandstone, likely iron-oxide- and organic/mineral-stained; exact variety uncertain

Sandstone (Sedimentary Rock (Quartz arenite)) — sedimentary

Sandstone

Sedimentary Rock (Quartz arenite)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Blue Apatite (Calcium Phosphate Fluoride/Chloride/Hydroxide, Ca5(PO4)3(F,Cl,OH)) — mineral

Blue Apatite

Calcium Phosphate Fluoride/Chloride/Hydroxide, Ca5(PO4)3(F,Cl,OH)

Blue Apatite (Fluorapatite (Ca5(PO4)3(F,Cl,OH))) — mineral

Blue Apatite

Fluorapatite (Ca5(PO4)3(F,Cl,OH))

Yellow Calcite (Calcium Carbonate (CaCO3)) — mineral

Yellow Calcite

Calcium Carbonate (CaCO3)

Sandstone (Sedimentary rock composed mainly of sand-sized minerals or rock grains) — sedimentary

Sandstone

Sedimentary rock composed mainly of sand-sized minerals or rock grains

Rounded sandstone or quartz-rich sedimentary pebble (Likely quartz arenite/subarkose; exact identification requires testing) — sedimentary

Rounded sandstone or quartz-rich sedimentary pebble

Likely quartz arenite/subarkose; exact identification requires testing

Sandstone with Dendritic Inclusions (Quartzose Sandstone) — sedimentary

Sandstone with Dendritic Inclusions

Quartzose Sandstone

Sandstone (Sedimentary Rock (Quartz arenite or arkose)) — sedimentary

Sandstone

Sedimentary Rock (Quartz arenite or arkose)

White Howlite (likely) (Howlite, Ca₂B₅SiO₉(OH)₅) — mineral

White Howlite (likely)

Howlite, Ca₂B₅SiO₉(OH)₅

Blue Calcite (Calcium Carbonate (CaCO3)) — mineral

Blue Calcite

Calcium Carbonate (CaCO3)

Pyrite (Iron Disulfide (FeS2)) — Mineral

Pyrite

Iron Disulfide (FeS2)

Limonite / Ironstone Concretion (Limonite (FeO(OH)·nH2O)) — mineral

Limonite / Ironstone Concretion

Limonite (FeO(OH)·nH2O)

Agate (SiO2) — mineral

Agate

SiO2

Conglomerate (Clastic sedimentary rock) — sedimentary

Conglomerate

Clastic sedimentary rock

Geode (Silicon dioxide (Quartz/Chalcedony nodule)) — sedimentary

Geode

Silicon dioxide (Quartz/Chalcedony nodule)

Tiny rounded metallic-looking pebble, possibly pyrite or a metal-rich mineral (Uncertain from image; possible pyrite (FeS₂), chalcopyrite (CuFeS₂), or magnetite (Fe₃O₄)) — mineral

Tiny rounded metallic-looking pebble, possibly pyrite or a metal-rich mineral

Uncertain from image; possible pyrite (FeS₂), chalcopyrite (CuFeS₂), or magnetite (Fe₃O₄)