Rock Identifier

Category

Mineral (Sedimentary Context)

Browse mineral (sedimentary context) specimens identified by the Rock Identifier community.

Learn about Mineral (Sedimentary Context) in the encyclopedia

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Coal

Coal

Claystone

Claystone

Shale

Shale

Marl

Black Shale

Black Shale

Blue Apatite (Fluorapatite (Ca5(PO4)3F)) — mineral

Blue Apatite

Fluorapatite (Ca5(PO4)3F)

mineral
Limonite (FeO(OH)·nH2O) — mineral

Limonite

FeO(OH)·nH2O

mineral
Limonite/Goethite (Iron Ore) (Hydrous ferric oxides (FeO(OH)·nH2O)) — mineral

Limonite/Goethite (Iron Ore)

Hydrous ferric oxides (FeO(OH)·nH2O)

mineral
Limonite (Iron Ore) (FeO(OH)·nH2O (Hydrated iron(III) oxide-hydroxide mixture)) — mineral

Limonite (Iron Ore)

FeO(OH)·nH2O (Hydrated iron(III) oxide-hydroxide mixture)

mineral
Iron Ore (Limonite and Hematite) (Goethite/Limonite (FeO(OH)·nH2O) and Hematite (Fe2O3)) — mineral

Iron Ore (Limonite and Hematite)

Goethite/Limonite (FeO(OH)·nH2O) and Hematite (Fe2O3)

mineral
Sphalerite (Zinc Sulfide (ZnS)) — mineral

Sphalerite

Zinc Sulfide (ZnS)

mineral
Shale (or Mudstone) (Clay mineral aggregate / Fine-grained siliciclastic sedimentary rock) — sedimentary

Shale (or Mudstone)

Clay mineral aggregate / Fine-grained siliciclastic sedimentary rock

sedimentary
Shale (Sedimentary rock composed of clay minerals and quartz) — sedimentary

Shale

Sedimentary rock composed of clay minerals and quartz

sedimentary
Yellow Jasper (Silicon Dioxide (SiO2) with iron impurities) — mineral

Yellow Jasper

Silicon Dioxide (SiO2) with iron impurities

mineral
Schist (Metamorphic Rock (Schist)) — metamorphic

Schist

Metamorphic Rock (Schist)

metamorphic
Generic Rock Fragment (Rock Fragment) — sedimentary

Generic Rock Fragment

Rock Fragment

sedimentary
Magnetite (Magnetite (Fe3O4)) — mineral

Magnetite

Magnetite (Fe3O4)

mineral
Picture Jasper (Silicon Dioxide (SiO2) with iron oxide and organic impurities) — sedimentary

Picture Jasper

Silicon Dioxide (SiO2) with iron oxide and organic impurities

sedimentary
Quartz Crystal Cluster (Silicon Dioxide (SiO2)) — mineral

Quartz Crystal Cluster

Silicon Dioxide (SiO2)

mineral
Red Jasper and Hematite (Silicon Dioxide (SiO2) and Iron Oxide (Fe2O3)) — mineral

Red Jasper and Hematite

Silicon Dioxide (SiO2) and Iron Oxide (Fe2O3)

mineral
Fluorite, Turquoise, and Calcite set (Calcium Fluoride (CaF2), Hydrous Phosphate of Copper and Aluminum (CuAl6(PO4)4(OH)8·4H2O), Calcium Carbonate (CaCO3)) — mineral

Fluorite, Turquoise, and Calcite set

Calcium Fluoride (CaF2), Hydrous Phosphate of Copper and Aluminum (CuAl6(PO4)4(OH)8·4H2O), Calcium Carbonate (CaCO3)

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

Orange Calcite

Calcium Carbonate (CaCO3)

mineral
Manganese Ore (Psilomelane/Pyrolusite) (Psilomelane ((Ba,H2O)2Mn5O10) and Pyrolusite (MnO2)) — Mineral

Manganese Ore (Psilomelane/Pyrolusite)

Psilomelane ((Ba,H2O)2Mn5O10) and Pyrolusite (MnO2)

Mineral
Hematite (likely Botryoidal or Specularite variant) (Iron(III) oxide (Fe2O3)) — mineral

Hematite (likely Botryoidal or Specularite variant)

Iron(III) oxide (Fe2O3)

mineral
Hematite (Hematite (Iron(III) oxide, Fe2O3)) — mineral

Hematite

Hematite (Iron(III) oxide, Fe2O3)

mineral
Geode (Calcite or Quartz) (Silicon Dioxide (SiO2) or Calcium Carbonate (CaCO3)) — sedimentary

Geode (Calcite or Quartz)

Silicon Dioxide (SiO2) or Calcium Carbonate (CaCO3)

sedimentary
Blue Chalcedony (Silicon Dioxide (SiO2)) — mineral

Blue Chalcedony

Silicon Dioxide (SiO2)

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

Pyrite (Fool's Gold)

Iron Sulfide (FeS2)

mineral
Limonite Geode / Ironstone Nodule (Hydrated Iron Oxide Hydroxide (FeO(OH)·nH2O)) — mineral

Limonite Geode / Ironstone Nodule

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

mineral
Satin Spar (Satin Spar Gypsum) (Calcium Sulfate Dihydrate (CaSO4·2H2O)) — mineral

Satin Spar (Satin Spar Gypsum)

Calcium Sulfate Dihydrate (CaSO4·2H2O)

mineral
Quartz Geode with Calcite (Silicon Dioxide (SiO2) with Calcium Carbonate (CaCO3)) — mineral

Quartz Geode with Calcite

Silicon Dioxide (SiO2) with Calcium Carbonate (CaCO3)

mineral
Rhodochrosite with Quartz (Manganese Carbonate (MnCO3) with Silicon Dioxide (SiO2)) — mineral

Rhodochrosite with Quartz

Manganese Carbonate (MnCO3) with Silicon Dioxide (SiO2)

mineral
Selenite (variety of Gypsum) (Calcium sulfate dihydrate (CaSO4·2H2O)) — mineral

Selenite (variety of Gypsum)

Calcium sulfate dihydrate (CaSO4·2H2O)

mineral
Limonite on Sandstone (Iron Oxyhydroxide (FeO(OH)·nH2O) on Quartz Sandstone) — sedimentary

Limonite on Sandstone

Iron Oxyhydroxide (FeO(OH)·nH2O) on Quartz Sandstone

sedimentary
Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

mineral
Sandstone (Sedimentary Rock (Quartz Sandstone)) — sedimentary

Sandstone

Sedimentary Rock (Quartz Sandstone)

sedimentary
Sandstone (Sedimentary Rock (Quartz Sandstone)) — sedimentary

Sandstone

Sedimentary Rock (Quartz Sandstone)

sedimentary
Petrified Wood (Silicified Wood (SiO2)) — fossil

Petrified Wood

Silicified Wood (SiO2)

fossil
Sandstone (Arenite (SiO2 primarily)) — sedimentary

Sandstone

Arenite (SiO2 primarily)

sedimentary
River Pebble (Polished Rock Fragment) — sedimentary

River Pebble

Polished Rock Fragment

sedimentary
Quartz Geode (Silicon Dioxide (SiO2) in Host Rock) — sedimentary

Quartz Geode

Silicon Dioxide (SiO2) in Host Rock

sedimentary
Pyrite (Iron Pyrite (FeS2)) — mineral

Pyrite

Iron Pyrite (FeS2)

mineral
Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

mineral
Yellow Jasper (Chalcedony (Silicon Dioxide with Iron inclusions), SiO2) — sedimentary

Yellow Jasper

Chalcedony (Silicon Dioxide with Iron inclusions), SiO2

sedimentary
Sandstone (Arenite (SiO2 principal)) — sedimentary

Sandstone

Arenite (SiO2 principal)

sedimentary
Sandstone (Arenite) — Sedimentary

Sandstone

Arenite

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

Pyrite (Fool's Gold)

Iron Sulfide (FeS2)

mineral