Rock Identifier

Category

Organic (Sedimentary Context)

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

Learn about Organic (Sedimentary Context) in the encyclopedia

Sapropel

Bituminous Shale

Bituminous Shale

Black Shale

Oil Shale

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

Epidote

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

Marble (Recrystallized Calcite (CaCO3)) — metamorphic

Marble

Recrystallized Calcite (CaCO3)

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

Marble

Recrystallized Calcite (CaCO3) / Marble

Marble (Recrystallized Calcite (CaCO3) or Dolomite (CaMg(CO3)2)) — metamorphic

Marble

Recrystallized Calcite (CaCO3) or Dolomite (CaMg(CO3)2)

Magnetite with Quartz (Magnetite (Fe3O4)) — mineral

Magnetite with Quartz

Magnetite (Fe3O4)

Red Jasper (Opaque microcrystalline quartz (SiO2) with iron oxide inclusions) — sedimentary

Red Jasper

Opaque microcrystalline quartz (SiO2) with iron oxide inclusions

Red Jasper (Silicon Dioxide (SiO2) with iron oxide (Fe2O3) inclusions) — sedimentary

Red Jasper

Silicon Dioxide (SiO2) with iron oxide (Fe2O3) inclusions

Red Jasper (Silicon Dioxide (SiO2) with Hematite inclusions) — sedimentary

Red Jasper

Silicon Dioxide (SiO2) with Hematite inclusions

Jasper (Silicon dioxide (SiO2)) — sedimentary

Jasper

Silicon dioxide (SiO2)

Jasper (Jasper (Cryptocrystalline Quartz, SiO2)) — sedimentary

Jasper

Jasper (Cryptocrystalline Quartz, SiO2)

Red Jasper (Silicon Dioxide (SiO2) with Hematite impurities) — sedimentary

Red Jasper

Silicon Dioxide (SiO2) with Hematite impurities

Red Jasper (Silicon Dioxide (SiO2) with Hematite impurities) — sedimentary

Red Jasper

Silicon Dioxide (SiO2) with Hematite impurities

Red Jasper (Silicon Dioxide (SiO2) with Iron inclusions) — sedimentary

Red Jasper

Silicon Dioxide (SiO2) with Iron inclusions

Red Jasper (Silicon Dioxide (SiO2) with Hematite (Fe2O3)) — sedimentary

Red Jasper

Silicon Dioxide (SiO2) with Hematite (Fe2O3)

Red Jasper (with Quartz and Chert) (Silicon Dioxide (SiO2) with Iron Oxide inclusions) — sedimentary

Red Jasper (with Quartz and Chert)

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Red Jasper (Chalcedony) (Silicon Dioxide (SiO2) with iron oxide inclusions) — mineral

Red Jasper (Chalcedony)

Silicon Dioxide (SiO2) with iron oxide inclusions

Yellow Jasper (Silicon Dioxide (SiO2) with iron inclusions) — sedimentary

Yellow Jasper

Silicon Dioxide (SiO2) with iron inclusions

Jasper (brecciated or orbicular variety) (Silicon dioxide (SiO2) with iron oxide inclusions) — sedimentary/mineral

Jasper (brecciated or orbicular variety)

Silicon dioxide (SiO2) with iron oxide inclusions

sedimentary/mineral

Galena (Lead Sulfide (PbS)) — mineral

Galena

Lead Sulfide (PbS)

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

Hematite

Iron(III) oxide (Fe2O3)

Pyrite (Iron Disulfide (FeS2)) — mineral

Pyrite

Iron Disulfide (FeS2)

Pyrite in Host Rock (Iron Disulfide (FeS2)) — mineral

Pyrite in Host Rock

Iron Disulfide (FeS2)

Galena (Lead(II) sulfide (PbS)) — mineral

Galena

Lead(II) sulfide (PbS)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Bornite (Bornite (Cu5FeS4)) — mineral

Bornite

Bornite (Cu5FeS4)

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

Pyrite (Fool's Gold)

Iron Sulfide (FeS2)

Pyrite (Iron Disulfide (FeS2)) — mineral

Pyrite

Iron Disulfide (FeS2)

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

Epidote

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

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Marble (Recrystallized Calcite (CaCO3) or Dolomite (CaMg(CO3)2)) — metamorphic

Marble

Recrystallized Calcite (CaCO3) or Dolomite (CaMg(CO3)2)

Marble (Recrystallized Calcite (CaCO3) Rock) — metamorphic

Marble

Recrystallized Calcite (CaCO3) Rock

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

Pyrite (Fool's Gold)

Iron Disulfide (FeS2)

Chert (Jasper variety) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Jasper variety)

Silicon Dioxide (SiO2)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Red Jasper (Silicon Dioxide (SiO2) with iron oxide inclusions) — sedimentary

Red Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

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

Red Jasper

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Common Opal (Green Opal) (Hydrated Silicon Dioxide (SiO2·nH2O)) — mineral

Common Opal (Green Opal)

Hydrated Silicon Dioxide (SiO2·nH2O)

Marble (Metamorphosed Limestone (primarily calcite CaCO3 or dolomite CaMg(CO3)2)) — metamorphic

Marble

Metamorphosed Limestone (primarily calcite CaCO3 or dolomite CaMg(CO3)2)

Magnetite (Lodestone) (Magnetite (Fe3O4)) — mineral

Magnetite (Lodestone)

Magnetite (Fe3O4)

Pyrite (Iron Disulfide (FeS2)) — mineral

Pyrite

Iron Disulfide (FeS2)

Pyrite (Iron Disulfide (FeS2)) — mineral

Pyrite

Iron Disulfide (FeS2)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)