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

Jasper (Silicon dioxide (Microcrystalline Quartz, SiO2)) — sedimentary

Jasper

Silicon dioxide (Microcrystalline Quartz, SiO2)

sedimentary
Ironstone (Limonite/Hematite concretion) (Ferruginous Siltstone / Goethite (FeO(OH))) — sedimentary

Ironstone (Limonite/Hematite concretion)

Ferruginous Siltstone / Goethite (FeO(OH))

sedimentary
Sandstone (Clastic sedimentary rock (primarily quartz arenite)) — sedimentary

Sandstone

Clastic sedimentary rock (primarily quartz arenite)

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

Quartz Geode

Silicon Dioxide (SiO2)

sedimentary
Shale (Argillaceous sedimentary rock) — sedimentary

Shale

Argillaceous sedimentary rock

sedimentary
Muscovite (KAl2(AlSi3O10)(OH)2) — mineral

Muscovite

KAl2(AlSi3O10)(OH)2

mineral
Limonite (Limonite (FeOO·nH2O)) — mineral

Limonite

Limonite (FeOO·nH2O)

mineral
Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

mineral
Chalcopyrite (Copper Iron Sulfide (CuFeS2)) — mineral

Chalcopyrite

Copper Iron Sulfide (CuFeS2)

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

Cleavable Calcite

Calcium Carbonate (CaCO3)

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

Yellow Calcite

Calcium Carbonate (CaCO3)

mineral
Calcite (Calcium Carbonate (CaCO3)) — mineral

Calcite

Calcium Carbonate (CaCO3)

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

Optical Calcite

Calcium Carbonate (CaCO3)

mineral
Pyrite (Iron Disulfide (FeS2)) — mineral

Pyrite

Iron Disulfide (FeS2)

mineral
Geode or Concretion (Silica-filled nodule (likely SiO2)) — sedimentary

Geode or Concretion

Silica-filled nodule (likely SiO2)

sedimentary
Quartz Geode (Silicon Dioxide (SiO2) within a geode) — mineral

Quartz Geode

Silicon Dioxide (SiO2) within a geode

mineral
Quartz Geode (Silicon Dioxide (SiO2)) — mineral

Quartz Geode

Silicon Dioxide (SiO2)

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

Pyrite (Fool's Gold)

Iron Disulfide (FeS2)

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

Satin Spar (Selenite)

Gypsum (Calcium Sulfate Dihydrate) - CaSO4·2H2O

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

Yellow Calcite

Calcium Carbonate (CaCO3)

mineral
Quartz (Rose Quartz or Jasper variety) (Silicon Dioxide (SiO2)) — mineral

Quartz (Rose Quartz or Jasper variety)

Silicon Dioxide (SiO2)

mineral
Sandstone Concretion (Sedimentary concretion) — Sedimentary

Sandstone Concretion

Sedimentary concretion

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

Limonite (Ironstone Concretion)

Limonite (FeO(OH)·nH2O)

mineral
Yellow Jasper (Silicon Dioxide (SiO2) with goethite or iron oxide inclusions) — sedimentary

Yellow Jasper

Silicon Dioxide (SiO2) with goethite or iron oxide inclusions

sedimentary
Yellow Jasper (Cryptocrystalline Quartz (SiO2 with Iron Hydroxide inclusions)) — sedimentary

Yellow Jasper

Cryptocrystalline Quartz (SiO2 with Iron Hydroxide inclusions)

sedimentary
Sandstone (Arenite) — sedimentary

Sandstone

Arenite

sedimentary
Epidote (Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))) — mineral

Epidote

Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))

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

Pyrite (Fool's Gold)

Iron Sulfide (FeS2)

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

Yellow Calcite

Calcite (Calcium Carbonate, CaCO3)

mineral
Quartz pebble (SiO2) — mineral

Quartz pebble

SiO2

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

Milky quartz fragment

Quartz (silicon dioxide, SiO₂)

mineral
Milky quartz (likely quartz vein fragment) (Quartz, silicon dioxide (SiO₂)) — mineral

Milky quartz (likely quartz vein fragment)

Quartz, silicon dioxide (SiO₂)

mineral
Pyrite (Iron Disulfide (FeS2)) — mineral

Pyrite

Iron Disulfide (FeS2)

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

Pyrite (Fool's Gold)

Iron Disulfide (FeS2)

mineral
Magnetite (Octahedral Crystal) (Magnetite (Fe3O4)) — mineral

Magnetite (Octahedral Crystal)

Magnetite (Fe3O4)

mineral
Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

mineral
Marble (Recrystallized Calcite / Dolomite (CaCO3)) — metamorphic

Marble

Recrystallized Calcite / Dolomite (CaCO3)

metamorphic
Pyrite (Fool's Gold) (Iron Disulfide (FeS2)) — mineral

Pyrite (Fool's Gold)

Iron Disulfide (FeS2)

mineral
Fish Fossil in Limestone (Lycoptera (likely) in Micritic Limestone) — sedimentary

Fish Fossil in Limestone

Lycoptera (likely) in Micritic Limestone

sedimentary
Sandstone (Arenite) — sedimentary

Sandstone

Arenite

sedimentary
Limonite or Ironstone Nodule (Hydrated iron oxide-hydroxide (FeO(OH)·nH2O)) — mineral

Limonite or Ironstone Nodule

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

mineral
Limonite Nodule (FeO(OH)·nH2O (Hydrated iron oxide-hydroxide)) — mineral

Limonite Nodule

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

mineral