Limonite (Yellow Ochre)
Hydrated iron(III) oxide-hydroxide (FeO(OH)·nH2O)
Category
Browse mineral in sedimentary specimens identified by the Rock Identifier community.
Limonite (Yellow Ochre)
Hydrated iron(III) oxide-hydroxide (FeO(OH)·nH2O)
Satin Spar (Selenite variant)
Gypsum (Calcium Sulfate Dihydrate, CaSO4·2H2O)
Pink Satin Spar (Satin Spar Selenite Dyed)
Gypsum (CaSO4·2H2O)
Satin Spar (Selenite)
Gypsum (Calcium Sulfate Dihydrate) - CaSO4·2H2O
Satin Spar (often sold as Selenite)
Gypsum (CaSO4·2H2O)
Iron Ore (Limonite and Hematite)
Goethite/Limonite (FeO(OH)·nH2O) and Hematite (Fe2O3)
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Pyrite
Iron Disulfide (FeS2)
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
Quartz (Variety: Citrine or Tumbled Chalcedony)
Silicon Dioxide (SiO2)
Satin Spar Selenite
Calcium Sulfate Dihydrate (CaSO4·2H2O)
Selenite (Satin Spar)
Gypsum (CaSO4·2H2O)
Rhodochrosite
Manganese carbonate (MnCO3)
Limonite (Iron Ore)
Limonite (FeO(OH)·nH2O)
Satin Spar (Gypsum variety)
Calcium Sulfate Dihydrate (CaSO4·2H2O)
Chert / Flint Nodules in Limestone
Silicon Dioxide (SiO2) within Calcium Carbonate (CaCO3)
Yellow Quartz (Citrine/Yellow Jasper)
Silicon Dioxide (SiO2)
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
Limonite/Hematite Ironstone
Goethite-rich Ironstone (FeO(OH) · nH2O)
Satin Spar (often marketed as Selenite)
Fibrous Gypsum (CaSO4·2H2O)
Rhodochrosite
Manganese Carbonate (MnCO3)
Selenite (Gypsum)
Hydrous calcium sulfate (CaSO4·2H2O)
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Selenite (Satin Spar)
Gypsum (CaSO4·2H2O)
Red Jasper
Silicon Dioxide (SiO2) with Hematite impurities
Satin Spar (Selenite)
Gypsum (Calcium Sulfate Dihydrate) - CaSO4·2H2O
Pyrite
Iron Sulfide (FeS2)
Satin Spar (Selenite)
Gypsum (Calcium Sulfate Dihydrate) - CaSO4·2H2O
Satin Spar (Selenite)
Gypsum (CaSO4·2H2O)
Satin Spar (Gypsum)
Calcium Sulfate Dihydrate (CaSO4·2H2O)
Pyrite (on host rock)
Iron Sulfide (FeS2)
Satin Spar (Gypsum)
Calcium Sulfate Dihydrate (CaSO4·2H2O)
Pyrite
Iron Disulfide (FeS2)
Satin Spar (often marketed as Selenite)
Fibrous Gypsum (CaSO4·2H2O)
Satin Spar (Gypsum)
Calcium Sulfate Dihydrate (CaSO4·2H2O)
Ferruginous Quartz
Silicon Dioxide (SiO2) with Iron Oxide inclusions
Selenite (Satin Spar Gypsum)
Calcium Sulfate Dihydrate (CaSO4·2H2O)
Howlite
Calcium Borosilicate Hydroxide (Ca2B5SiO9(OH)5)
Pyrite (Fool's Gold) Ore
Iron Disulfide (FeS2)
Selenite (Gypsum Variety)
Hydrous Calcium Sulfate (CaSO4·2H2O)
Satin Spar Selenite
Gypsum (Calcium Sulfate Dihydrate, CaSO4·2H2O)