Gold Nugget
Native Gold (Au)
Category
Browse metal (elemental mineral) specimens identified by the Rock Identifier community.
Gold Nugget
Native Gold (Au)
Pyrite
Iron Disulfide (FeS2)
Pyrite
Iron Sulfide (FeS2)
Chert (Jasper/Flint variety)
Microcrystalline Quartz (SiO2)
Lapis Lazuli
Lapis Lazuli (Primary mineral: Lazurite (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)
Mica Schist
Schist (primarily Muscovite and Biotite mica)
Gold Ore in Quartz
Auriferous Quartz (Gold: Au; Quartz: SiO2)
Pyrite
Iron Sulfide (FeS2)
Barite Rose on Marcasite
Barium Sulfate (BaSO4) on Iron Sulfide (FeS2)
Black Tourmaline (Schorl)
Schorl (Sodium Iron Aluminum Borosilicate Hydroxide), NaFe2+3Al6Si6O18(BO3)3(OH)3OH
Black Tourmaline
Schorl (Sodium Iron Aluminum Borosilicate Hydroxide)
Hematite
Iron(III) oxide (Fe2O3)
Gold Nugget
Native Gold (Au)
Arfvedsonite in Matrix
Arfvedsonite [Na3(Fe2+)4Fe3+Si8O22(OH)2]
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Specularite (Specular Hematite)
Iron Oxide (Fe2O3)
Hematite
Iron(III) oxide (Fe2O3)
Chondrite Meteorite
Ordinary Chondrite (L or H Type)
Limonite (Pseudomorph after Pyrite/Marcasite)
Hydrated Iron Oxide (FeO(OH)·nH2O)
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
Black Pearl (Tahitian Pearl)
Aragonite / Calcite (CaCO3) with Conchiolin
Native Gold (in the form of jewelry)
Gold (Au)
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Pyrite (on Quartz/Sulfide matrix)
Iron Sulfide (FeS2)
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
Shungite
Shungite (carbon-rich Precambrian mineraloid)
Pyrite
Iron Disulfide (FeS2)
Pyrite
Iron Disulfide (FeS2)
Pyrite
Iron Sulfide (FeS2)
Gold
Gold (Native Au)
Specular Hematite (Specularite)
Iron Oxide (Fe2O3)
Limonite (Bog Iron)
Limonite (Hydrated iron(III) oxide-hydroxide) - FeO(OH)·nH2O
Gold Nugget
Native Gold (Au)
Iron-Nickel Meteorite fragment
Siderite (meteoritic iron), composed primarily of Kamacite (α-(Fe,Ni)) and Taenite (γ-(Fe,Ni))
Specular Hematite (Specularite)
Iron Oxide (Fe2O3)
Silicon Carbide (Carborundum)
Silicon Carbide (SiC)
Sandstone with Manganese Dendrites/Oxide coatings
Arenite with Pyrolusite and Romanechite (MnO2)
Lapis Lazuli
Lapis lazuli (Mainly Lazurite: Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)
Basalt with Iron Oxides
Mafic Igneous Rock (Mafite)
Schist
Mica Schist
Mica in Quartz Host
Muscovite (KAl2(AlSi3O10)(OH)2) in Quartz (SiO2)
Basalt
Basalt