Pyrite
Iron Sulfide (FeS2)
mineral
Category
Anthropic Metallic Specimen
Browse anthropic metallic specimen specimens identified by the Rock Identifier community.
Magnetite (Iron Ore)
Magnetite (Fe3O4)
mineral
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Basalt (with possible fluidal texture)
Basalt (Aphanitic Mafic Igneous Rock)
igneous
Garnet Schist
Almandine-Mica Schist
metamorphic
Pyrite in Shale
Iron Sulfide (FeS2)
mineral
Muscovite Mica (in Quartz matrix)
Potassium aluminum silicate hydroxide fluoride (KAl2(AlSi3O10)(F,OH)2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Basalt (Vesicular)
Extrusive mafic igneous rock
igneous
Limonite after Pyrite (Pseudomorph)
FeO(OH)·nH2O following FeS2
mineral
Limonite (Yellow Ochre)
Hydrated iron(III) oxide-hydroxide (FeO(OH)·nH2O)
mineral
Porphyritic Basalt (with Pyrolusite or Iron-oxide staining)
Porphyritic Basalt (Mafic Extrusive)
igneous
Mica Schist
Mica Schist (KAl2(AlSi3O10)(OH)2 in Matrix)
metamorphic
Diorite (River Pebble)
Intermediate Phaneritic Igneous Rock
igneous
Quartzite Pebbler
Quartzite (SiO2)
metamorphic
Sunstone
Aventurine Feldspar ((Ca,Na)(Al,Si)4O8)
mineral
Magnetite
Iron(II,III) oxide (Fe3O4)
mineral
Black Tourmaline
Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
mineral
Titanium Aura Quartz
Titanium-coated Silicon Dioxide (SiO2)
mineral (man-enhanced)
Gold Nugget
Native Gold (Au)
mineral
Rainbow Hematite (Titanium Coated)
Iron(III) oxide (Fe2O3) with Titanium/Metal Oxide coating
mineral
Basalt River Stone
Basalt (Aphanitic Mafic Igneous Rock)
igneous
Dyed and Metallic Coated Agate Geode
Silicon Dioxide (SiO2) with titanium/gold vapor deposition coating
sedimentary (primary) with artificial modification
Pyrite
Iron Disulfide (FeS2)
mineral
Iron Slag
Ferrous Slag (Industrial Byproduct)
mineraloid (anthropogenic byproduct)
Pyrite
Iron Sulfide (FeS2)
mineral
Iron Meteorite
Siderite (Iron-Nickel alloy)
meteorite
Basalt
Basalt (Mafic volcanic rock)
igneous
Ironstone Pebble
Ferruginous sedimentary rock (Fe2O3 / FeO(OH) mixed with SiO2)
sedimentary
Gold Nugget
Native Gold (Au)
mineral
Oolitic Ironstone
Sedimentary Ooidal Ironstone (Limonite/Hematite mixture)
sedimentary
Pyrite
Iron Disulfide (FeS2)
mineral
Silicon Carbide (Carborundum)
Silicon Carbide (SiC)
mineral
Silver (Jewelry Specimen)
Native Silver (Chemical Formula: Ag)
mineral
Lapis Lazuli
Lazurite-rich metamorphic rock (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2
metamorphic
River Cobble (likely Basalt or Mafic Igneous Rock)
Extrusive Mafic Igneous Rock (e.g., Basalt)
igneous
Pyrite
Iron Sulfide (FeS2)
mineral
Pyrite (on Quartz matrix)
Iron Sulfide (FeS2)
mineral
Granite (with Muscovite Mica)
Phaneritic Felsic Igneous Rock (primarily Quartz SiO2, K-Feldspar KAlSi3O8, and Muscovite KAl2(AlSi3O10)(OH)2)
igneous
Gold Nugget
Native Gold (Au)
mineral
Gold Nugget
Native Gold (Au)
mineral
Collection of Minerals and Ores
Various (e.g., Uraninite (U3O8), Carbon (C), Native Gold (Au), Hematite (Fe2O3), Galena (PbS), etc.)
mineral