Rock Identifier

Category

Anthropic Metallic Specimen

Browse anthropic metallic specimen specimens identified by the Rock Identifier community.

Quartz Vein in Basalt or Slate (Hydrothermal quartz vein traversing mafic host rock) — metamorphic

Quartz Vein in Basalt or Slate

Hydrothermal quartz vein traversing mafic host rock

Tiger Iron (Tiger Iron (composite of Tiger's Eye, Red Jasper, and Hematite)) — metamorphic

Tiger Iron

Tiger Iron (composite of Tiger's Eye, Red Jasper, and Hematite)

Gabbro (likely with Pyrite/Sulfide mineralization) (Mafic Intrusive Igneous Rock) — igneous

Gabbro (likely with Pyrite/Sulfide mineralization)

Mafic Intrusive Igneous Rock

Bixbyite on Rhyolite (Bixbyite (Mn2+,Fe3+)2O3) — mineral

Bixbyite on Rhyolite

Bixbyite (Mn2+,Fe3+)2O3

Native Copper with Cuprite and Quartz (Copper (Cu), Cuprite (Cu2O), Quartz (SiO2)) — mineral

Native Copper with Cuprite and Quartz

Copper (Cu), Cuprite (Cu2O), Quartz (SiO2)

Smoky Quartz with Siderite and Pyrite (Silicon Dioxide (SiO2) with Ferrous Carbonate (FeCO3) and Iron Sulfide (FeS2)) — mineral

Smoky Quartz with Siderite and Pyrite

Silicon Dioxide (SiO2) with Ferrous Carbonate (FeCO3) and Iron Sulfide (FeS2)

Iron meteorite (likely etched or weathered iron meteorite) (Fe–Ni alloy, predominantly kamacite and taenite; possible ataxite/hexahedrite or coarse octahedrite) — meteorite

Iron meteorite (likely etched or weathered iron meteorite)

Fe–Ni alloy, predominantly kamacite and taenite; possible ataxite/hexahedrite or coarse octahedrite

Carborundum (Silicon Carbide) (Silicon Carbide (SiC)) — mineral (synthetic)

Carborundum (Silicon Carbide)

Silicon Carbide (SiC)

mineral (synthetic)

Likely hematite-bearing ironstone (Hematite (Fe₂O₃), possibly mixed with other iron oxides and host rock) — mineral

Likely hematite-bearing ironstone

Hematite (Fe₂O₃), possibly mixed with other iron oxides and host rock

Raw Sunstone (Plagioclase Feldspar (Na, Ca)(Al, Si)4O8) — mineral

Raw Sunstone

Plagioclase Feldspar (Na, Ca)(Al, Si)4O8

Bornite (Peacock Ore) (Bornite (Cu5FeS4)) — mineral

Bornite (Peacock Ore)

Bornite (Cu5FeS4)

Galena-bearing ore (tentative) (Galena, lead sulfide (PbS), likely in a quartz/carbonate-rich matrix) — mineral

Galena-bearing ore (tentative)

Galena, lead sulfide (PbS), likely in a quartz/carbonate-rich matrix

Metallic sulfide mineral specimen, likely pyrite-bearing ore (Likely pyrite (FeS₂), possibly mixed with other sulfides or host rock) — mineral

Metallic sulfide mineral specimen, likely pyrite-bearing ore

Likely pyrite (FeS₂), possibly mixed with other sulfides or host rock

Micro-Meteorite (Micrometeoroid) (Extraterrestrial Spherule (Silicate or Iron-Nickel)) — mineral

Micro-Meteorite (Micrometeoroid)

Extraterrestrial Spherule (Silicate or Iron-Nickel)

Pyrite-bearing rock (Likely pyrite (FeS₂), possibly with quartz or other sulfide minerals) — mineral

Pyrite-bearing rock

Likely pyrite (FeS₂), possibly with quartz or other sulfide minerals

Copper ore (cupriferous rock) (Native copper with copper oxides, likely cuprite (Cu₂O) and malachite/azurite alteration) — mineral

Copper ore (cupriferous rock)

Native copper with copper oxides, likely cuprite (Cu₂O) and malachite/azurite alteration

Fluorite (Green) (Calcium Fluoride (CaF2)) — mineral

Fluorite (Green)

Calcium Fluoride (CaF2)

Likely pyrite-bearing rock (Pyrite (FeS₂), possibly in a quartz- or iron-oxide-rich matrix) — mineral

Likely pyrite-bearing rock

Pyrite (FeS₂), possibly in a quartz- or iron-oxide-rich matrix

Pyrite (“fool’s gold”), likely in a quartz-rich matrix (Pyrite, FeS₂) — mineral

Pyrite (“fool’s gold”), likely in a quartz-rich matrix

Pyrite, FeS₂

Hematite (Iron(III) oxide (Fe2O3)) — mineral

Hematite

Iron(III) oxide (Fe2O3)

Hematite (Iron Ore) (Hematite (Fe2O3)) — mineral

Hematite (Iron Ore)

Hematite (Fe2O3)

Botryoidal Hematite (Kidney Ore) (Iron(III) oxide (Fe2O3)) — mineral

Botryoidal Hematite (Kidney Ore)

Iron(III) oxide (Fe2O3)

Sunstone (Andesine-Labradorite Feldspar ((Ca,Na)(Al,Si)4O8)) — mineral

Sunstone

Andesine-Labradorite Feldspar ((Ca,Na)(Al,Si)4O8)

Diamond (Carbon (C)) — mineral

Diamond

Carbon (C)

Likely tumbled hematite-rich ironstone (Hematite, Fe₂O₃, possibly mixed with goethite or magnetite) — mineral

Likely tumbled hematite-rich ironstone

Hematite, Fe₂O₃, possibly mixed with goethite or magnetite

Pyrite (likely) (Pyrite, FeS₂) — mineral

Pyrite (likely)

Pyrite, FeS₂

Iron Meteorite (Siderite (Meteoric Iron-Nickel alloy)) — igneous

Iron Meteorite

Siderite (Meteoric Iron-Nickel alloy)

Specular Hematite (Specularite) (Iron Oxide (Fe2O3)) — mineral

Specular Hematite (Specularite)

Iron Oxide (Fe2O3)

Gold and Silver (Metal Components of an Antique Pocket Watch) (Native Gold (Au) and Native Silver (Ag)) — mineral

Gold and Silver (Metal Components of an Antique Pocket Watch)

Native Gold (Au) and Native Silver (Ag)

Botryoidal Hematite (Iron(III) oxide (Fe2O3)) — mineral

Botryoidal Hematite

Iron(III) oxide (Fe2O3)

Iron-rich metamorphic rock, likely banded iron formation fragment (Hematite–magnetite-rich quartzite (BIF); Fe₂O₃/Fe₃O₄ with SiO₂) — metamorphic

Iron-rich metamorphic rock, likely banded iron formation fragment

Hematite–magnetite-rich quartzite (BIF); Fe₂O₃/Fe₃O₄ with SiO₂

Sunstone (Oligoclase (Plagioclase Feldspar) with inclusions - (Ca, Na)((Al, Si)4O8)) — mineral

Sunstone

Oligoclase (Plagioclase Feldspar) with inclusions - (Ca, Na)((Al, Si)4O8)

Hematite (Iron(III) oxide (Fe2O3)) — mineral

Hematite

Iron(III) oxide (Fe2O3)

Metallic sulfide ore specimen (Likely pyrite-bearing massive sulfide, possibly pyrrhotite or galena; exact identification requires testing) — mineral

Metallic sulfide ore specimen

Likely pyrite-bearing massive sulfide, possibly pyrrhotite or galena; exact identification requires testing

Banded Iron Formation (Fragment) (Banded Iron Formation (BIF)) — sedimentary

Banded Iron Formation (Fragment)

Banded Iron Formation (BIF)

Tumbled polymetallic mineral specimen, likely chalcopyrite-bearing ore (Probable chalcopyrite (CuFeS₂) with quartz and iron-oxide minerals; exact identification is uncertain from the photograph) — mineral

Tumbled polymetallic mineral specimen, likely chalcopyrite-bearing ore

Probable chalcopyrite (CuFeS₂) with quartz and iron-oxide minerals; exact identification is uncertain from the photograph

Pyrite Sun (Iron Sulfide (FeS2)) — mineral

Pyrite Sun

Iron Sulfide (FeS2)

Basalt River Stone (Extrusive mafic igneous rock (Basalt)) — igneous

Basalt River Stone

Extrusive mafic igneous rock (Basalt)

Sunstone ((Ca,Na)((Al,Si)2Si2)O8 (Plagioclase Feldspar)) — mineral

Sunstone

(Ca,Na)((Al,Si)2Si2)O8 (Plagioclase Feldspar)

Pyrite (fool’s gold) (Pyrite, iron disulfide (FeS₂)) — mineral

Pyrite (fool’s gold)

Pyrite, iron disulfide (FeS₂)

Quartz-bearing pyrite–chalcopyrite specimen (Pyrite (FeS₂), likely chalcopyrite (CuFeS₂), with quartz (SiO₂)) — mineral

Quartz-bearing pyrite–chalcopyrite specimen

Pyrite (FeS₂), likely chalcopyrite (CuFeS₂), with quartz (SiO₂)

Tumbled peacock ore (likely chalcopyrite) (Chalcopyrite, CuFeS₂, commonly artificially oxidized to produce iridescent colors) — mineral

Tumbled peacock ore (likely chalcopyrite)

Chalcopyrite, CuFeS₂, commonly artificially oxidized to produce iridescent colors