Rock Identifier

Category

Anthropic Metallic Specimen

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

Limonite after Pyrite (Prophecy Stone or Ironstone Concretion) (Goethite/Limonite pseudomorph after Pyrite/Marcasite (FeO(OH)·nH2O)) — mineral

Limonite after Pyrite (Prophecy Stone or Ironstone Concretion)

Goethite/Limonite pseudomorph after Pyrite/Marcasite (FeO(OH)·nH2O)

Mica schist (Mica schist (Muscovite and Biotite group)) — metamorphic

Mica schist

Mica schist (Muscovite and Biotite group)

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

Hematite (Iron Ore)

Hematite (Fe2O3)

Chondrite Meteorite (L or H type Ordinary Chondrite) — igneous

Chondrite Meteorite

L or H type Ordinary Chondrite

Arsenopyrite in Quartz Matrix (Arsenopyrite (FeAsS)) — mineral

Arsenopyrite in Quartz Matrix

Arsenopyrite (FeAsS)

Bornite (Copper Iron Sulfide (Cu5FeS4)) — mineral

Bornite

Copper Iron Sulfide (Cu5FeS4)

Labradorite (Labradorite (Plagioclase Feldspar series; (Ca,Na)(Al,Si)4O8)) — mineral

Labradorite

Labradorite (Plagioclase Feldspar series; (Ca,Na)(Al,Si)4O8)

Anthracite Coal (Anthracite (Carbon)) — metamorphic

Anthracite Coal

Anthracite (Carbon)

Spinifex Textured Komatiite (Ultramafic Komatiite) — igneous

Spinifex Textured Komatiite

Ultramafic Komatiite

Basalt (Basalt (extrusive volcanic rock)) — igneous

Basalt

Basalt (extrusive volcanic rock)

Muscovite Schist (Mica Schist (KAl2(AlSi3O10)(OH)2)) — metamorphic

Muscovite Schist

Mica Schist (KAl2(AlSi3O10)(OH)2)

Basalt (Mafic Igneous Rock (primarily Plagioclase and Pyroxene)) — igneous

Basalt

Mafic Igneous Rock (primarily Plagioclase and Pyroxene)

Pyrite (Cube variety) (Iron Sulfide (FeS2)) — mineral

Pyrite (Cube variety)

Iron Sulfide (FeS2)

Basalt (Basalt (Mafic volcanic rock)) — igneous

Basalt

Basalt (Mafic volcanic rock)

Schist (Mica Schist) — metamorphic

Schist

Mica Schist

Basalt (Extrusive Igneous Basalt (contains Plagioclase Feldspar and Pyroxene)) — igneous

Basalt

Extrusive Igneous Basalt (contains Plagioclase Feldspar and Pyroxene)

Bituminous Coal (Bituminous coal (Carbonaceous sedimentary rock)) — sedimentary

Bituminous Coal

Bituminous coal (Carbonaceous sedimentary rock)

Anthracite Coal (Anthracite) — metamorphic

Anthracite Coal

Anthracite

Mica Schist (Mica Schist (predominantly Muscovite or Biotite sheet silicates)) — metamorphic

Mica Schist

Mica Schist (predominantly Muscovite or Biotite sheet silicates)

Chalcopyrite (Copper Iron Sulfide (CuFeS2)) — mineral

Chalcopyrite

Copper Iron Sulfide (CuFeS2)

Gold Nugget (Native Gold (Au)) — mineral

Gold Nugget

Native Gold (Au)

Obsidian (specifically Rainbow or Silver Sheen Obsidian) (Volcanic Glass (predominantly SiO2)) — Igneous

Obsidian (specifically Rainbow or Silver Sheen Obsidian)

Volcanic Glass (predominantly SiO2)

Mica Schist (Mica Schist (Complex Silicate Rock)) — metamorphic

Mica Schist

Mica Schist (Complex Silicate Rock)

Basalt (Basalt (Igneous Volcanic Rock)) — igneous

Basalt

Basalt (Igneous Volcanic Rock)

Bismuth Crystal (Bismuth (Bi)) — mineral

Bismuth Crystal

Bismuth (Bi)

Bornite (Bornite (Cu5FeS4)) — mineral

Bornite

Bornite (Cu5FeS4)

Basalt (Basalt) — igneous

Basalt

Basalt

Quartzite (river pebble) and Gabbro (crushed rock) (Quartzite (metamorphosed Quartz Sandstone, SiO2) and Gabbro (Plagioclase-Clinopyroxene rock)) — Metamorphic and Igneous

Quartzite (river pebble) and Gabbro (crushed rock)

Quartzite (metamorphosed Quartz Sandstone, SiO2) and Gabbro (Plagioclase-Clinopyroxene rock)

Metamorphic and Igneous

Ironstone Concretion / Limonite Node (Limonite (Hydrated Iron Oxide, FeO(OH)·nH2O) with Goethite/Hematite) — sedimentary

Ironstone Concretion / Limonite Node

Limonite (Hydrated Iron Oxide, FeO(OH)·nH2O) with Goethite/Hematite

Nuummite (Orthorhombic amphibole (Gedrite and Anthophyllite mixture) - (Mg,Fe)7Si8O22(OH)2) — metamorphic

Nuummite

Orthorhombic amphibole (Gedrite and Anthophyllite mixture) - (Mg,Fe)7Si8O22(OH)2

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

Black Tourmaline (Schorl)

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

Anthracite Coal (Anthracite (Metamorphosed Coal)) — sedimentary

Anthracite Coal

Anthracite (Metamorphosed Coal)

Basalt (Extrusive Mafic Igneous Rock (composed primarily of Plagioclase, Pyroxene, and Olivine)) — igneous

Basalt

Extrusive Mafic Igneous Rock (composed primarily of Plagioclase, Pyroxene, and Olivine)

Mica Schist (Foliated Metamorphic Rock (rich in Muscovite or Biotite)) — metamorphic

Mica Schist

Foliated Metamorphic Rock (rich in Muscovite or Biotite)

Schist (Mica Schist (Medium-grade metamorphic rock)) — metamorphic

Schist

Mica Schist (Medium-grade metamorphic rock)

Basalt with Iron Oxidation (Mafic Igneous Rock (Basalt)) — igneous

Basalt with Iron Oxidation

Mafic Igneous Rock (Basalt)

Mica Schist (Mica Schist (KAl2(AlSi3O10)(OH)2 / K(Mg,Fe)3(AlSi3O10)(OH)2)) — metamorphic

Mica Schist

Mica Schist (KAl2(AlSi3O10)(OH)2 / K(Mg,Fe)3(AlSi3O10)(OH)2)

Iron Meteorite (likely Chondrite or weathered Iron-Nickel) (Meteorite (Fe-Ni alloy & silicates)) — igneous

Iron Meteorite (likely Chondrite or weathered Iron-Nickel)

Meteorite (Fe-Ni alloy & silicates)

Schist (Mica Schist) — metamorphic

Schist

Mica Schist

Moqui Marble (Shaman Stone) (Ironstone Concretion (Fe2O3) - primarily Hematite or Goethite shell with Sandstone core) — sedimentary

Moqui Marble (Shaman Stone)

Ironstone Concretion (Fe2O3) - primarily Hematite or Goethite shell with Sandstone core

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

Basalt

Basalt (Mafic Extrusive Igneous Rock)

Lapis Lazuli (Lapis Lazuli (Complex aggregate mainly of Lazurite: (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)) — metamorphic

Lapis Lazuli

Lapis Lazuli (Complex aggregate mainly of Lazurite: (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)