Rock Identifier

Category

Anthropic Metallic Specimen

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

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

Sunstone

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

Basalt (Basalt (containing plagioclase feldspar, pyroxene, and olivine)) — igneous

Basalt

Basalt (containing plagioclase feldspar, pyroxene, and olivine)

Healer's Gold (Pyrite/Magnetite in Serpentine) (Magnetite (Fe3O4) and Pyrite (FeS2) in Lizardite/Antigorite [Mg3Si2O5(OH)4]) — metamorphic

Healer's Gold (Pyrite/Magnetite in Serpentine)

Magnetite (Fe3O4) and Pyrite (FeS2) in Lizardite/Antigorite [Mg3Si2O5(OH)4]

Gold-bearing quartz vein rock (Quartz (SiO₂) with probable native gold and iron-oxide minerals) — mineral

Gold-bearing quartz vein rock

Quartz (SiO₂) with probable native gold and iron-oxide minerals

Gold (10K Alloy) (Aurum (Au) with alloying metals (Cu, Ag, Zn)) — mineral

Gold (10K Alloy)

Aurum (Au) with alloying metals (Cu, Ag, Zn)

Iron meteorite (likely Sikhote-Alin–type or similar) (Fe–Ni metallic meteorite, commonly kamacite with taenite; exact classification requires laboratory testing) — meteorite

Iron meteorite (likely Sikhote-Alin–type or similar)

Fe–Ni metallic meteorite, commonly kamacite with taenite; exact classification requires laboratory testing

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

Bornite (Peacock Ore)

Bornite (Cu5FeS4)

Pyrite-rich Gossan (Iron Sulfide (FeS2) in Ore Matrix) — mineral

Pyrite-rich Gossan

Iron Sulfide (FeS2) in Ore Matrix

Titanium Quartz (Rough) (Titanium-included Silicon Dioxide (SiO2 + Ti)) — mineral

Titanium Quartz (Rough)

Titanium-included Silicon Dioxide (SiO2 + Ti)

Raw green pyrite (Pyrite, FeS₂ (likely nickel-bearing or oxidized greenish pyrite)) — mineral

Raw green pyrite

Pyrite, FeS₂ (likely nickel-bearing or oxidized greenish pyrite)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Native Copper (Native Copper (Cu)) — mineral

Native Copper

Native Copper (Cu)

Probable galena (Galena (lead sulfide, PbS)) — mineral

Probable galena

Galena (lead sulfide, PbS)

Ironstone concretion (possible pyrite-bearing nodule) (Iron-oxide-rich concretion, chiefly goethite/hematite; composition cannot be confirmed from the image) — sedimentary

Ironstone concretion (possible pyrite-bearing nodule)

Iron-oxide-rich concretion, chiefly goethite/hematite; composition cannot be confirmed from the image

Galena (Galena (lead sulfide, PbS)) — mineral

Galena

Galena (lead sulfide, PbS)

Botryoidal hematite–goethite specimen (Hematite (Fe₂O₃) with goethite (FeO(OH)), possibly minor manganese oxides) — mineral

Botryoidal hematite–goethite specimen

Hematite (Fe₂O₃) with goethite (FeO(OH)), possibly minor manganese oxides

Synthetic Resin / Plastic Figurine (Synthetic Polymer (Copolymer of Polyethylene or Resin)) — Mineraloid-like Synthetic Material

Synthetic Resin / Plastic Figurine

Synthetic Polymer (Copolymer of Polyethylene or Resin)

Mineraloid-like Synthetic Material

Galena specimen (Galena (PbS), commonly associated with sphalerite and other sulfides) — mineral

Galena specimen

Galena (PbS), commonly associated with sphalerite and other sulfides

Iron-rich volcanic rock, possibly hematite-bearing basalt (Basalt with iron oxides/hydroxides, chiefly hematite (Fe₂O₃) and possibly magnetite (Fe₃O₄)) — igneous

Iron-rich volcanic rock, possibly hematite-bearing basalt

Basalt with iron oxides/hydroxides, chiefly hematite (Fe₂O₃) and possibly magnetite (Fe₃O₄)

Pyrite on quartz matrix (Pyrite (FeS₂), likely with quartz (SiO₂) and possibly calcite or clay matrix) — mineral

Pyrite on quartz matrix

Pyrite (FeS₂), likely with quartz (SiO₂) and possibly calcite or clay matrix

Polished agate or jasper cabochon (uncertain) (Microcrystalline quartz, SiO₂ (likely chalcedony/agate or jasper)) — mineral

Polished agate or jasper cabochon (uncertain)

Microcrystalline quartz, SiO₂ (likely chalcedony/agate or jasper)

Silver (Native Silver Mineral) (Ag (Native Silver), Alloyed 90% Ag / 10% Cu) — mineral

Silver (Native Silver Mineral)

Ag (Native Silver), Alloyed 90% Ag / 10% Cu

Iron meteorite fragment (Fe-Ni meteorite, likely an iron meteorite or stony-iron fragment) — meteorite

Iron meteorite fragment

Fe-Ni meteorite, likely an iron meteorite or stony-iron fragment

Biotite-rich schist (Mica schist, chiefly quartz + biotite mica; composition varies) — metamorphic

Biotite-rich schist

Mica schist, chiefly quartz + biotite mica; composition varies

Basalt (Basalt (Mafic volcanic rock)) — igneous

Basalt

Basalt (Mafic volcanic rock)

Arsenopyrite in Quartz/Host Rock (Arsenopyrite (FeAsS)) — mineral

Arsenopyrite in Quartz/Host Rock

Arsenopyrite (FeAsS)

Banded Agate (Chert/Chaldcedony) (Silicon Dioxide (SiO₂)) — mineral

Banded Agate (Chert/Chaldcedony)

Silicon Dioxide (SiO₂)

Botryoidal Hematite (Kidney Ore) (Hematite (Fe2O3)) — Mineral

Botryoidal Hematite (Kidney Ore)

Hematite (Fe2O3)

Native Gold Nugget (Native Gold (Au)) — mineral

Native Gold Nugget

Native Gold (Au)

Fossiliferous limestone (Bioclastic carbonate rock, chiefly calcite (CaCO₃)) — sedimentary

Fossiliferous limestone

Bioclastic carbonate rock, chiefly calcite (CaCO₃)

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

Hematite Concretion

Iron(III) oxide (Fe2O3)

Nuummite (Orthoamphibole (Gedrite-Anthophyllite series)) — metamorphic

Nuummite

Orthoamphibole (Gedrite-Anthophyllite series)

Specular Hematite (Hematite (Fe2O3)) — mineral

Specular Hematite

Hematite (Fe2O3)

Ferruginous Sandstone (Ironstone) (Sedimentary rock with high iron oxide content (Fe2O3 / FeO(OH))) — sedimentary

Ferruginous Sandstone (Ironstone)

Sedimentary rock with high iron oxide content (Fe2O3 / FeO(OH))

Metal-rich meteorite candidate (Unclassified stony-iron or iron meteorite candidate; probable fusion-crusted fragment) — meteorite

Metal-rich meteorite candidate

Unclassified stony-iron or iron meteorite candidate; probable fusion-crusted fragment

Raw graphite-rich metamorphic rock (probable graphite schist) (Graphite schist; predominantly crystalline carbon (graphite, C) with mica and quartz) — metamorphic

Raw graphite-rich metamorphic rock (probable graphite schist)

Graphite schist; predominantly crystalline carbon (graphite, C) with mica and quartz

Pyrite-bearing metamorphic rock (probable schist or quartzite) (Quartz–mica schist with disseminated pyrite; approximate composition SiO₂ + phyllosilicates + FeS₂) — metamorphic

Pyrite-bearing metamorphic rock (probable schist or quartzite)

Quartz–mica schist with disseminated pyrite; approximate composition SiO₂ + phyllosilicates + FeS₂

Pyrite in Matrix (Iron Sulfide (FeS2)) — mineral

Pyrite in Matrix

Iron Sulfide (FeS2)

Amethyst geode fragment (Quartz, SiO₂; purple color from irradiation-related iron impurities) — mineral

Amethyst geode fragment

Quartz, SiO₂; purple color from irradiation-related iron impurities

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

Basalt (River Pebble)

Extrusive mafic igneous rock

Likely graphite-rich schist (Graphite-bearing schist, composed mainly of graphite with possible mica and quartz) — metamorphic

Likely graphite-rich schist

Graphite-bearing schist, composed mainly of graphite with possible mica and quartz

Iron-rich breccia (Hematite–goethite-rich ferruginous breccia, likely a lateritic ironstone) — sedimentary

Iron-rich breccia

Hematite–goethite-rich ferruginous breccia, likely a lateritic ironstone