Limonite Ironstone
Goethite-Limonite concretion / Iron oxide
sedimentary
Category
Mineral, Often Found In Sedimentary Deposits
Browse mineral, often found in sedimentary deposits specimens identified by the Rock Identifier community.
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Agate (Turtle Carving)
Agate (Cryptocrystalline variety of Silica, SiO2)
mineral
Chalcopyrite
Chalcopyrite (CuFeS2)
Mineral
Blue Calcite Sphere
Calcium Carbonate (CaCO3)
mineral
Sandstone
Arenite (composed primarily of SiO2)
sedimentary
Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Magnetite / Hematite (Iron Ore)
Magnetite (Fe3O4) or Hematite (Fe2O3)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Rhodochrosite
Manganese carbonate (MnCO3)
mineral
Bornite
Bornite (Cu5FeS4)
mineral
Pyrite in Shale
Iron Disulfide (FeS2)
mineral
Yellow Agate (Banded Chalcedony)
Silicon Dioxide (SiO2)
sedimentary
Goethite (Iron Ore)
Goethite (FeO(OH))
mineral
Golden Calcite
Calcium Carbonate (CaCO3)
mineral
Magnetite / Ironstone Pebble
Magnetite (Fe3O4)
mineral
Howlite
Ca2B5SiO9(OH)5
mineral
Limonite
Hydrous ferric oxides (FeO(OH)·nH2O)
sedimentary
Chert with Chalcedony/Quartz Vug
Cryptocrystalline Silica (SiO2)
sedimentary
Jasper
Microcrystalline Quartz (SiO2)
gemstone
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
mineral
Magnetite (Iron Ore)
Iron(II,III) oxide (Fe3O4)
mineral
Satin Spar Selenite
Gypsum (Calcium Sulfate Dihydrate, CaSO4·2H2O)
mineral
Native Copper
Native Copper (Cu)
mineral
Gravel and Sand Aggregate
Unconsolidated Clastic Sediment
sedimentary
Gneiss
Gneiss
metamorphic
Celestite (Celestine) Geode
Strontium Sulfate (SrSO4)
mineral
Yellow Calcite
Calcium Carbonate (CaCO3)
mineral
Blue Calcite
Calcite (Calcium Carbonate, CaCO3)
mineral
Specular Hematite
Hematite (Iron(III) oxide, Fe2O3)
mineral
Barite Rose
Barium Sulfate (BaSO4)
mineral
Chalcopyrite
Copper Iron Sulfide (CuFeS2)
mineral
Halite
Sodium Chloride (NaCl)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Picture Jasper
Silicified sedimentary or volcanic rock (primarily SiO2)
sedimentary
Selenite (Satin Spar)
Gypsum (CaSO4·2H2O)
mineral
Howlite
Howlite (Calcium borosilicate hydroxide, Ca2B5SiO9(OH)5)
mineral
Blue Celestite (with Galena)
Strontium sulfate (SrSO4) and Lead sulfide (PbS)
mineral
Selenite
Gypsum (Calcium Sulfate Dihydrate) - CaSO4·2H2O
mineral
Rhodochrosite
Manganese carbonate (MnCO3)
mineral
Agate Geode
Silicon Dioxide (SiO2) - Chalcedony variety
sedimentary
Carnelian Agate
Chalcedony (SiO2)
mineral