Black Tourmaline
Schorl (Sodium Iron Aluminum Borosilicate Hydroxide), NaFe3Al6(BO3)3Si6O18(OH)4
Category
Browse mineral, metal (element) specimens identified by the Rock Identifier community.
Black Tourmaline
Schorl (Sodium Iron Aluminum Borosilicate Hydroxide), NaFe3Al6(BO3)3Si6O18(OH)4
Pyrite
Iron Sulfide (FeS2)
Pyrite
Iron Disulfide (FeS2)
Gold
Native Gold (Au)
Turquoise and Hematite
Turquoise (CuAl6(PO4)4(OH)8·4H2O) and Hematite (Fe2O3)
Gold
Native Gold (Au)
Pyrite in Matrix (likely Quartz or Schist matrix)
Iron Sulfide (FeS2)
Galena
Lead(II) sulfide (PbS)
Specular Hematite
Specularite (Iron Oxide, Fe2O3)
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
Pyrite
Iron Sulfide (FeS2)
Gold Nugget
Native Gold (Au)
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
Gold
Native Gold (Au)
Black Sand (Magnetite Sand)
Magnetite (Fe3O4)
Gold Nugget
Native Gold (Au)
Magnetite / Iron Ore
Magnetite (Fe3O4)
Gold
Native Gold (Au)
Hematite
Iron(III) oxide (Fe2O3)
Pyrite
Iron Sulfide (FeS2)
Graphite
Graphite (Native Carbon, C)
Gold Nugget
Native Gold (Au)
Magnetite Orthorthotropic Rock
Magnetite (Fe3O4)
Placer Gold Nugget
Native Gold (Au)
Hematite
Iron(III) oxide (Fe2O3)
Hematite (Iron Ore)
Hematite (Fe2O3)
Specular Hematite (Specularite)
Iron Oxide (Fe2O3)
Titanium-Coated Hematite (Aura Hematite)
Titanium-bonded Hematite (Fe2O3 with a Ti coating)
Pyrite
Iron Pyrite (FeS2)
Sunstone
Oligoclase (Plagioclase Feldspar) - (Ca,Na)(Al,Si)4O8 with Hematite or Copper inclusions
Limonite Concretion (Ironstone)
Limonite (FeO(OH)·nH2O) / Goethite
Botryoidal Hematite (Kidney Ore)
Iron(III) oxide (Fe2O3)
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
Hematite
Iron(III) oxide (Fe2O3)
Hematite
Hematite (Fe2O3)
Hematite
Hematite (Fe2O3)
Hematite
Iron(III) oxide (Fe2O3)
Pyrite
Iron Disulfide (FeS2)
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
Gold Nugget
Native Gold (Au)
Pyrite
Iron Sulfide (FeS2)