Rock Identifier

Category

Sedimentary And Metamorphic Minerals

Browse sedimentary and metamorphic minerals specimens identified by the Rock Identifier community.

Red Sandstone (Arenite (with Iron Oxide)) — sedimentary

Red Sandstone

Arenite (with Iron Oxide)

Sandstone (Red Sandstone) (Clastic Sedimentary Rock (primarily SiO2 with Iron Oxide)) — sedimentary

Sandstone (Red Sandstone)

Clastic Sedimentary Rock (primarily SiO2 with Iron Oxide)

Conglomerate (Conglomerate (Detrital sedimentary rock)) — sedimentary

Conglomerate

Conglomerate (Detrital sedimentary rock)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Peacock Ore (Bornite (Cu5FeS4) or iridescent Chalcopyrite (CuFeS2)) — mineral

Peacock Ore

Bornite (Cu5FeS4) or iridescent Chalcopyrite (CuFeS2)

Quartzite (River Cobble) (Quartzite (primarily SiO2)) — metamorphic

Quartzite (River Cobble)

Quartzite (primarily SiO2)

Soapstone (Steatite (primarily composed of Talc, Mg₃Si₄O₁₀(OH)₂)) — Metamorphic Rock

Soapstone

Steatite (primarily composed of Talc, Mg₃Si₄O₁₀(OH)₂)

Metamorphic Rock

Rhodonite (Manganese Silicate (Mn,Fe,Mg,Ca)SiO3) — mineral

Rhodonite

Manganese Silicate (Mn,Fe,Mg,Ca)SiO3

Epidote (Epidote - {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)) — mineral

Epidote

Epidote - {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)

Green Calcite (Calcite (CaCO3)) — mineral

Green Calcite

Calcite (CaCO3)

Zebra Jasper (Zebra Stone) (Silicon Dioxide (SiO2) with iron oxide and manganese inclusions) — sedimentary

Zebra Jasper (Zebra Stone)

Silicon Dioxide (SiO2) with iron oxide and manganese inclusions

Chert (Red Jasper variant) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Red Jasper variant)

Microcrystalline Quartz (SiO2)

Chert (Flint/Jasper variety) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Flint/Jasper variety)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (Iron-stained) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Iron-stained)

Microcrystalline Quartz (SiO2)

Sandstone (Red Flagstone) (Clastic sedimentary rock (primarily Quartz - SiO2)) — sedimentary

Sandstone (Red Flagstone)

Clastic sedimentary rock (primarily Quartz - SiO2)

Red Shale (Lutite (primarily composed of Hydrous Aluminum Silicates with Hematite staining)) — sedimentary

Red Shale

Lutite (primarily composed of Hydrous Aluminum Silicates with Hematite staining)

Opal (Hydrated Amorphous Silica (SiO2·nH2O)) — Mineral

Opal

Hydrated Amorphous Silica (SiO2·nH2O)

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

Petrified Wood

Silicified Wood (primarily SiO2)

Coral Fossil (Petrified Coral) (Scleractinia (Order) - Calcified Fossil Skeleton (CaCO3)) — sedimentary

Coral Fossil (Petrified Coral)

Scleractinia (Order) - Calcified Fossil Skeleton (CaCO3)

Moqui Marble (Shaman Stone) (Ironstone Concretion (Fe2O3 - Hematite/Goethite shell with Sandstone core)) — sedimentary

Moqui Marble (Shaman Stone)

Ironstone Concretion (Fe2O3 - Hematite/Goethite shell with Sandstone core)

Petrified Wood (Silicified wood (primarily Silicon Dioxide, SiO2)) — sedimentary

Petrified Wood

Silicified wood (primarily Silicon Dioxide, SiO2)

Red Sandstone (Arenite (primarily Quartz SiO2 with Hematite Fe2O3 cement)) — sedimentary

Red Sandstone

Arenite (primarily Quartz SiO2 with Hematite Fe2O3 cement)

Siltstone with Weathering Rind (Siltstone (composed of microscopic quartz and clay minerals)) — sedimentary

Siltstone with Weathering Rind

Siltstone (composed of microscopic quartz and clay minerals)

Red Sandstone (Arenite (primarily composed of SiO2 with Fe2O3 cement)) — sedimentary

Red Sandstone

Arenite (primarily composed of SiO2 with Fe2O3 cement)

Dyed Agate (Silicon Dioxide with artificial pigment (SiO2)) — sedimentary

Dyed Agate

Silicon Dioxide with artificial pigment (SiO2)

Conglomerate (Conglomerate (Clastic Sedimentary Rock)) — Sedimentary

Conglomerate

Conglomerate (Clastic Sedimentary Rock)

Chert (specifically Flint or Jasper variant) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (specifically Flint or Jasper variant)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Orange Calcite (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite

Calcium Carbonate (CaCO3)

Blue-dyed Quartz Druzy (Silicon Dioxide (SiO2) with artificial pigment) — mineral

Blue-dyed Quartz Druzy

Silicon Dioxide (SiO2) with artificial pigment

Quartz (Silicon Dioxide (SiO2)) — Mineral

Quartz

Silicon Dioxide (SiO2)

Rhodonite (Manganese Silicate (Mn,Fe,Mg,Ca)SiO3) — mineral

Rhodonite

Manganese Silicate (Mn,Fe,Mg,Ca)SiO3

Rhodonite (Rhodonite (Manganese Silicate), chemical formula: (Mn,Fe,Mg,Ca)SiO3) — Mineral

Rhodonite

Rhodonite (Manganese Silicate), chemical formula: (Mn,Fe,Mg,Ca)SiO3

Ferruginous Quartz (Iron-stained Quartz) (Silicon Dioxide (SiO2) with Hematite/Goethite inclusions) — mineral

Ferruginous Quartz (Iron-stained Quartz)

Silicon Dioxide (SiO2) with Hematite/Goethite inclusions

Chert (Iron-stained) (Chert (primarily Microcrystalline Quartz, SiO2)) — sedimentary

Chert (Iron-stained)

Chert (primarily Microcrystalline Quartz, SiO2)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Quartzite (Rounded Pebble) (Quartzite (predominantly SiO2)) — metamorphic

Quartzite (Rounded Pebble)

Quartzite (predominantly SiO2)

Yellow Quartzite Pebble (Quartzite (SiO2)) — metamorphic

Yellow Quartzite Pebble

Quartzite (SiO2)

Hematite (Iron Ore) (Hematite (Fe2O3)) — mineral

Hematite (Iron Ore)

Hematite (Fe2O3)

Garnet (Garnet Group (Silicate Minerals), formula varies e.g., Almandine Fe3Al2(SiO4)3) — mineral

Garnet

Garnet Group (Silicate Minerals), formula varies e.g., Almandine Fe3Al2(SiO4)3

Banded Calcite (variety Honey Calcite / Chocolate Calcite) (Calcium Carbonate (CaCO3)) — mineral

Banded Calcite (variety Honey Calcite / Chocolate Calcite)

Calcium Carbonate (CaCO3)

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

Limonite (Iron Ore)

Hydrous ferric oxides (FeO(OH)·nH2O)