Rock Identifier

Category

Anthropic Metallic Specimen

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

Sunstone (Orthoclase or Oligoclase Feldspar (Na,Ca)(Al,Si)4O8) — mineral

Sunstone

Orthoclase or Oligoclase Feldspar (Na,Ca)(Al,Si)4O8

Asphalt (Bituminous Concrete) (Bituminous Concrete / Pavement) — man-made (synthetic rock)

Asphalt (Bituminous Concrete)

Bituminous Concrete / Pavement

man-made (synthetic rock)

Mica Schist (Mica Schist) — metamorphic

Mica Schist

Mica Schist

Bornite (Bornite (Cu5FeS4)) — mineral

Bornite

Bornite (Cu5FeS4)

Gold Nugget (Native Gold (Au)) — Mineral

Gold Nugget

Native Gold (Au)

Basalt (River Stone) (Basalt (Mafic volcanic rock)) — igneous

Basalt (River Stone)

Basalt (Mafic volcanic rock)

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

Basalt (River Stone)

Extrusive mafic igneous rock

Gold Nugget (Native Gold (Au)) — mineral

Gold Nugget

Native Gold (Au)

Faceted Glass (Costume Jewelry) (Amorphous Silicon Dioxide with colorants (Glass)) — Synthetic/Man-made Material

Faceted Glass (Costume Jewelry)

Amorphous Silicon Dioxide with colorants (Glass)

Synthetic/Man-made Material

Pyrite (Iron Disulfide (FeS2)) — mineral

Pyrite

Iron Disulfide (FeS2)

Pyrite (Fool's Gold) (Iron Sulfide (FeS2)) — mineral

Pyrite (Fool's Gold)

Iron Sulfide (FeS2)

Pyrite (Fool's Gold) (Iron Disulfide (FeS2)) — mineral

Pyrite (Fool's Gold)

Iron Disulfide (FeS2)

Gold (in Opaque Matrix/Jewelry) (Native Gold (Au)) — mineral

Gold (in Opaque Matrix/Jewelry)

Native Gold (Au)

Basalt (with possible weathering or secondary mineral crust) (Basalt (Aphanitic Mafic Igneous Rock)) — Igneous

Basalt (with possible weathering or secondary mineral crust)

Basalt (Aphanitic Mafic Igneous Rock)

Iron Slag (Iron Slag (Industrial Vitreous Material)) — Mineral/By-product

Iron Slag

Iron Slag (Industrial Vitreous Material)

Mineral/By-product

Black Tourmaline in Quartz Matrix (Schorl (NaFe3Al6(BO3)3Si6O18(OH)4) with Quartz (SiO2)) — mineral

Black Tourmaline in Quartz Matrix

Schorl (NaFe3Al6(BO3)3Si6O18(OH)4) with Quartz (SiO2)

Basalt (with Brass Inlay) (Basalt (Mafic volcanic rock)) — igneous

Basalt (with Brass Inlay)

Basalt (Mafic volcanic rock)

Moss Agate (Silicon Dioxide (SiO2) with Chlorite/Oxide inclusions) — mineral

Moss Agate

Silicon Dioxide (SiO2) with Chlorite/Oxide inclusions

Gold Nugget (Native Gold (Au)) — mineral

Gold Nugget

Native Gold (Au)

Basalt (Vesicular or Weathered) (Aphanitic Mafic Igneous Rock (Basalt)) — igneous

Basalt (Vesicular or Weathered)

Aphanitic Mafic Igneous Rock (Basalt)

Granitic Pegmatite with Tourmaline and Sphalerite (Pegmatite containing Schorl (NaFe3Al6(BO3)3Si6O18(OH)4) and Sphalerite ((Zn,Fe)S)) — igneous

Granitic Pegmatite with Tourmaline and Sphalerite

Pegmatite containing Schorl (NaFe3Al6(BO3)3Si6O18(OH)4) and Sphalerite ((Zn,Fe)S)

Black Tourmaline (Schorl) in Matrix (NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)) — mineral

Black Tourmaline (Schorl) in Matrix

NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)

Basalt Water-Worn Pebble (Aphanitic Mafic Igneous Rock) — igneous

Basalt Water-Worn Pebble

Aphanitic Mafic Igneous Rock

Mica Schist with Quartz (Mica-Quartz Schist (Muscovite subclass)) — metamorphic

Mica Schist with Quartz

Mica-Quartz Schist (Muscovite subclass)

Limonite Pseudomorph after Pyrite (Limonite (Hydrous iron oxides, FeO(OH)·nH2O) replacing Pyrite (FeS2)) — mineral

Limonite Pseudomorph after Pyrite

Limonite (Hydrous iron oxides, FeO(OH)·nH2O) replacing Pyrite (FeS2)

Quartz Pebble (with Manganese dendrites/staining) (Silicon Dioxide (SiO2) with Manganese Oxide impurities) — mineral

Quartz Pebble (with Manganese dendrites/staining)

Silicon Dioxide (SiO2) with Manganese Oxide impurities

Basalt pebble (Basalt) — igneous

Basalt pebble

Basalt

Diabase (Greenstone) (Diabase or Dolerite) — igneous

Diabase (Greenstone)

Diabase or Dolerite

Fluorite (specifically Blue John or Banded Fluorite) (Calcium Fluoride (CaF2)) — mineral

Fluorite (specifically Blue John or Banded Fluorite)

Calcium Fluoride (CaF2)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Pyrite in Shale (Iron Disulfide (FeS2) in Sedimentary Shale) — mineral

Pyrite in Shale

Iron Disulfide (FeS2) in Sedimentary Shale

Peacock Ore (Bornite or Chalcopyrite) (Bornite (Cu₅FeS₄) or iridescent Chalcopyrite (CuFeS₂)) — mineral

Peacock Ore (Bornite or Chalcopyrite)

Bornite (Cu₅FeS₄) or iridescent Chalcopyrite (CuFeS₂)

Basalt with Iron Oxidation (Mafic Igneous Basalt) — igneous

Basalt with Iron Oxidation

Mafic Igneous Basalt

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

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

Bornite (Peacock Ore)

Bornite (Cu5FeS4)

Limonite (Iron Stone/Goethite) (Limonite (mixture of hydrated iron oxides, primarily Goethite: α-FeO(OH))) — mineral

Limonite (Iron Stone/Goethite)

Limonite (mixture of hydrated iron oxides, primarily Goethite: α-FeO(OH))

Basalt (Vesicular/Scoriaceous) (Extrusive Mafic Volcanic Rock (Primarily Plagioclase Feldspar and Pyroxene)) — Igneous

Basalt (Vesicular/Scoriaceous)

Extrusive Mafic Volcanic Rock (Primarily Plagioclase Feldspar and Pyroxene)

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

Sunstone

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

Fluorite (Calcium fluoride (CaF2)) — mineral

Fluorite

Calcium fluoride (CaF2)

Pyrite (Fool's Gold) (Iron Disulfide (FeS2)) — mineral

Pyrite (Fool's Gold)

Iron Disulfide (FeS2)

Pyrite in Matrix (likely Quartz or Coal) (Iron Sulfide (FeS2)) — mineral

Pyrite in Matrix (likely Quartz or Coal)

Iron Sulfide (FeS2)

Vesicular Basalt (Basalt (Mafic Extrusive Igneous Rock)) — igneous

Vesicular Basalt

Basalt (Mafic Extrusive Igneous Rock)