Basalt with Iron Oxidation (Lattice/Veined)
Mafic Volcanic Rock (principally Plagioclase and Pyroxene)
Category
Browse mineral (processed metal) specimens identified by the Rock Identifier community.
Basalt with Iron Oxidation (Lattice/Veined)
Mafic Volcanic Rock (principally Plagioclase and Pyroxene)
Shungite
Non-crystalline carbon (allotrope of carbon)
Sunstone
Plagioclase Feldspar (Na,Ca)(Al,Si)4O8
Sunstone (Feldspar variety)
Oligoclase or Andesine (Na,Ca)(Al,Si)4O8
Pyrite
Iron Sulfide (FeS2)
Ironstone (likely siderite or goethite-rich siltstone)
Ferruginous Siltstone
Pyrite
Iron Sulfide (FeS2)
Chalcopyrite (Peacock Ore)
Chalcopyrite (CuFeS2)
Pyrite
Iron Sulfide (FeS2)
Pyrite
Iron Sulfide (FeS2)
Pyrite (Fools Gold)
Iron Sulfide (FeS2)
Peacock Ore (Bornite or Chalcopyrite treated with acid)
Bornite (Cu5FeS4) or Acid-washed Chalcopyrite (CuFeS2)
Hypersthene
Enstatite (Hypersthene variety), (Mg,Fe)SiO3
Hematite
Hematite (Fe2O3)
Pyrite
Iron Sulfide (FeS2)
Galena
Lead Sulfide (PbS)
Pyrite
Iron Sulfide (FeS2)
Specular Hematite
Hematite (Fe2O3)
Schorl (Black Tourmaline)
NaFe3Al6Si6O18(BO3)3(OH)3OH (Iron tourmaline)
Gold Nugget
Native Gold (Au)
Red Hematite
Iron(III) Oxide (Fe2O3)
Rainbow Hematite (Man-made/Treated)
Tumbled Hematite with Titanium/Anodized coating (Iron(III) oxide, Fe2O3)
Gold-bearing Quartz with Pyrite
Quartz (SiO2) with Gold (Au) and Pyrite (FeS2)
Black Tourmaline
Schorl (Sodium Iron Aluminum Borosilicate Hydroxide), NaFe3Al6(BO3)3Si6O18(OH)4
Schorl (Black Tourmaline)
NaFe3Al6(BO3)3Si6O18(OH)4 (Sodium Iron Aluminum Borosilicate)
Pyrite
Iron Sulfide (FeS2)
Gold Ore in Matrix
Native Gold (Au) in Quartz/Limonite host rock
Gold Nugget
Native Gold (Au)
Pyrite (on Quartz matrix)
Iron Sulfide (FeS2)
Pyrite
Iron Sulfide (FeS2)
Hematite
Iron(III) oxide (Fe2O3)
Hypersthene
Hypersthene (Enstatite variety), (Mg,Fe)SiO3
Gold Nugget
Native Gold (Au)
Pyrite
Iron Sulfide (FeS2)
Hematite (Tumbled)
Iron(III) oxide (Fe2O3)
Specular Hematite
Specularite (Iron Oxide, Fe2O3)
Pyrite
Iron Sulfide (FeS2)
Limonite
FeO(OH)·nH2O (Hydrated iron oxide)
Gold Nugget
Native Gold (Au)
Pyrite
Iron Disulfide (FeS2)
Chert (Jasper/Flint variety)
Microcrystalline Quartz (SiO2)
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions