Rock Identifier

Category

Anthropic Metallic Specimen

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

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

Pyrite (Fool's Gold)

Iron Disulfide (FeS2)

mineral
Labradorite (Labradorite ((Ca, Na)(Al, Si)4O8)) — mineral

Labradorite

Labradorite ((Ca, Na)(Al, Si)4O8)

mineral
Limonite (Iron-rich Gossan/Laterite) (FeO(OH)·nH2O (Hydrated Iron Oxide)) — mineral

Limonite (Iron-rich Gossan/Laterite)

FeO(OH)·nH2O (Hydrated Iron Oxide)

mineral
Chromite (Chromite (FeCr2O4)) — mineral

Chromite

Chromite (FeCr2O4)

mineral
Titanium Aura Quartz (Aura Quartz) (Titanium-coated Silicon Dioxide (SiO2)) — mineral

Titanium Aura Quartz (Aura Quartz)

Titanium-coated Silicon Dioxide (SiO2)

mineral
Vesicular Basalt (River Rock) (Afanitic Vesicular Basalt) — igneous

Vesicular Basalt (River Rock)

Afanitic Vesicular Basalt

igneous
Basalt (Basalt) — igneous

Basalt

Basalt

igneous
Basalt with Alteration Crust (Basalt (SiO2 range 45-52%)) — igneous

Basalt with Alteration Crust

Basalt (SiO2 range 45-52%)

igneous
Anthracite Coal (Anthracite (Carbon-rich metamorphic coal)) — sedimentary

Anthracite Coal

Anthracite (Carbon-rich metamorphic coal)

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

Hematite

Iron(III) oxide (Fe2O3)

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

Black Tourmaline (Schorl)

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

mineral
Chalcopyrite (Chalcopyrite (CuFeS2)) — mineral

Chalcopyrite

Chalcopyrite (CuFeS2)

mineral
Aventurine (Silicon Dioxide (SiO2) with inclusions of Fuchsite mica) — mineral

Aventurine

Silicon Dioxide (SiO2) with inclusions of Fuchsite mica

mineral
Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

mineral
Basalt (Basalt (composition predominately plagioclase feldspar and pyroxene)) — igneous

Basalt

Basalt (composition predominately plagioclase feldspar and pyroxene)

igneous
Limonite (Iron Ore) (Hydrated Iron(III) Oxide-Hydroxide (FeO(OH)·nH2O)) — mineral

Limonite (Iron Ore)

Hydrated Iron(III) Oxide-Hydroxide (FeO(OH)·nH2O)

mineral
Fluorite (Calcium Fluoride (CaF2)) — mineral

Fluorite

Calcium Fluoride (CaF2)

mineral
Pyrite Concretion (Iron Sulfide (FeS2) in Sedimentary Matrix) — sedimentary

Pyrite Concretion

Iron Sulfide (FeS2) in Sedimentary Matrix

sedimentary
Silicon (Crystalline Silicon (Si)) — mineral

Silicon

Crystalline Silicon (Si)

mineral
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)

igneous
Magnetite Orthorthotropic Rock (Magnetite (Fe3O4)) — mineral

Magnetite Orthorthotropic Rock

Magnetite (Fe3O4)

mineral
Basalt (Basalt) — igneous

Basalt

Basalt

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

Green Fluorite

Fluorite (Calcium Fluoride, CaF2)

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

Labradorite

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

mineral
Banded Iron Formation (Jaspilite) (Banded Iron Formation (BIF); predominantly Hematite (Fe2O3) and Magnetite (Fe3O4) with Chert/Jasper (SiO2)) — sedimentary

Banded Iron Formation (Jaspilite)

Banded Iron Formation (BIF); predominantly Hematite (Fe2O3) and Magnetite (Fe3O4) with Chert/Jasper (SiO2)

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

Peacock Ore

Bornite (Cu5FeS4) or Chalcopyrite (CuFeS2) with iridescent tarnish

mineral
Basalt (Vesicular) (Basalt) — igneous

Basalt (Vesicular)

Basalt

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

Iron Meteorite

Siderite (Iron-Nickel alloy)

meteorite
Gold (Native Gold (Au)) — mineral

Gold

Native Gold (Au)

mineral
Pyrite (Iron Disulfide (FeS2)) — mineral

Pyrite

Iron Disulfide (FeS2)

mineral
Magnetic Sand Grain / Magnetite Pellet (Magnetite (Fe3O4)) — mineral

Magnetic Sand Grain / Magnetite Pellet

Magnetite (Fe3O4)

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

Gold Nugget

Native Gold (Au)

mineral
Graphite (Graphite (C)) — mineral

Graphite

Graphite (C)

mineral
Basalt (Aphanitic Mafic Igneous Rock) — igneous

Basalt

Aphanitic Mafic Igneous Rock

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

Basalt

Mafic Igneous Rock (primarily Plagioclase and Pyroxene)

igneous
Basalt (Mafic Igneous Rock) — igneous

Basalt

Mafic Igneous Rock

igneous
Magnetite (Magnetite (Fe3O4)) — mineral

Magnetite

Magnetite (Fe3O4)

mineral
Banded Iron Formation (BIF) (Banded Iron Formation) — Sedimentary

Banded Iron Formation (BIF)

Banded Iron Formation

Sedimentary
Silicon Carbide (Carborundum) (Moissanite (SiC), though mostly synthetic) — mineral

Silicon Carbide (Carborundum)

Moissanite (SiC), though mostly synthetic

mineral
Native Silver (Silver (elemental Ag)) — mineral

Native Silver

Silver (elemental Ag)

mineral
Basalt (Mafic Igneous Rock (composed primarily of plagioclase feldspar and pyroxene)) — igneous

Basalt

Mafic Igneous Rock (composed primarily of plagioclase feldspar and pyroxene)

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

Pyrite (Fool's Gold)

Iron Sulfide (FeS2)

mineral