Rock Identifier

Category

Meteorite (Extraterrestrial Material)

Browse meteorite (extraterrestrial material) specimens identified by the Rock Identifier community.

Weathered iron-rich rock (likely basalt or ironstone) (Probable altered basalt; exact identification requires testing) — igneous

Weathered iron-rich rock (likely basalt or ironstone)

Probable altered basalt; exact identification requires testing

Slag (Anthropogenic Vitreous Silica/Iron oxides) — mineral-like byproduct

Slag

Anthropogenic Vitreous Silica/Iron oxides

mineral-like byproduct

Rounded brown pebble, likely weathered sandstone or iron-stained quartzite (Probable quartz-rich sandstone (SiO₂-dominated); exact identification requires testing) — sedimentary

Rounded brown pebble, likely weathered sandstone or iron-stained quartzite

Probable quartz-rich sandstone (SiO₂-dominated); exact identification requires testing

Slag (Industrial Glass/Glassy Rock) (Anthropogenic Vitreous Material) — igneous

Slag (Industrial Glass/Glassy Rock)

Anthropogenic Vitreous Material

Chondrite Meteorite (L or H Ordinary Chondrite) — meteorite

Chondrite Meteorite

L or H Ordinary Chondrite

Iron Meteorite (Siderite (Iron-Nickel Meteorite)) — mineral

Iron Meteorite

Siderite (Iron-Nickel Meteorite)

Peridot (Olivine) (Olivine, (Mg,Fe)2SiO4) — Mineral

Peridot (Olivine)

Olivine, (Mg,Fe)2SiO4

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

Iron Meteorite

Siderite (Iron-Nickel alloy)

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

Chondrite Meteorite

Ordinary Chondrite (L or H group)

Ironstone concretion (probable hematite–goethite-rich ironstone) (Iron oxide/hydroxide concretion; chiefly hematite (Fe₂O₃) and goethite (FeO(OH)), with possible magnetite and quartz) — sedimentary

Ironstone concretion (probable hematite–goethite-rich ironstone)

Iron oxide/hydroxide concretion; chiefly hematite (Fe₂O₃) and goethite (FeO(OH)), with possible magnetite and quartz

Possible iron-rich basalt or industrial slag (Basalt, likely Fe–Mg silicate rock; exact identification is uncertain from the blurred image) — igneous

Possible iron-rich basalt or industrial slag

Basalt, likely Fe–Mg silicate rock; exact identification is uncertain from the blurred image

Iron-rich hematite/goethite concretion (likely limonite) (Hematite (Fe₂O₃) with goethite (FeO(OH)) and limonite) — mineral

Iron-rich hematite/goethite concretion (likely limonite)

Hematite (Fe₂O₃) with goethite (FeO(OH)) and limonite

Tektite (Indochinite) (Tektite (High-silica amorphous glass)) — igneous

Tektite (Indochinite)

Tektite (High-silica amorphous glass)

Tektite (Tektite (high-silica natural glass)) — Mineraloid

Tektite

Tektite (high-silica natural glass)

Slag (Ferrous Slag (Siliceous industrial waste)) — Anthropogenic (Man-made industrial byproduct)

Slag

Ferrous Slag (Siliceous industrial waste)

Anthropogenic (Man-made industrial byproduct)

Chondrite Meteorite (Stony Meteorite (Ordinary Chondrite)) — meteorite

Chondrite Meteorite

Stony Meteorite (Ordinary Chondrite)

Chondrite Meteorite (Stony Meteorite (Ordinary Chondrite)) — meteorite

Chondrite Meteorite

Stony Meteorite (Ordinary Chondrite)

Chondrite Meteorite (Ordinary Chondrite (L or H Type)) — Mineral

Chondrite Meteorite

Ordinary Chondrite (L or H Type)

Slag (Industrial Byproduct) (Anthropogenic Vitreous Silicate material) — igneous

Slag (Industrial Byproduct)

Anthropogenic Vitreous Silicate material

Chondrite Meteorite (Ordinary Chondrite (Undifferentiated Stony Meteorite)) — meteorite

Chondrite Meteorite

Ordinary Chondrite (Undifferentiated Stony Meteorite)

Iron Slag (Ferrous slag (primarily silicates and oxides of calcium, iron, and magnesium)) — Anthropogenic (Man-made industrial byproduct)

Iron Slag

Ferrous slag (primarily silicates and oxides of calcium, iron, and magnesium)

Anthropogenic (Man-made industrial byproduct)

Chondrite Meteorite (Ordinary Chondrite (S-type asteroid origin)) — igneous

Chondrite Meteorite

Ordinary Chondrite (S-type asteroid origin)

Vesicular Basalt (Iron Scoria) (Aphanitic Mafic Igneous Rock with Vesicular Texture) — igneous

Vesicular Basalt (Iron Scoria)

Aphanitic Mafic Igneous Rock with Vesicular Texture

Iron meteorite (probable) (Fe–Ni metal, commonly kamacite and taenite) — meteorite

Iron meteorite (probable)

Fe–Ni metal, commonly kamacite and taenite

Slag (Industrial) (N/A (Anthropogenic Slag)) — industrial by-product

Slag (Industrial)

N/A (Anthropogenic Slag)

industrial by-product

Unidentified weathered rock fragments (Likely mixed silicate rocks; specific identification requires testing) — mineral

Unidentified weathered rock fragments

Likely mixed silicate rocks; specific identification requires testing

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

Iron Slag

Iron Slag (Industrial Vitreous Material)

Mineral/By-product

Slag (Industrial Byproduct) (Artificial silicate/iron byproduct) — Mineral description (Anthropogenic material)

Slag (Industrial Byproduct)

Artificial silicate/iron byproduct

Mineral description (Anthropogenic material)

Fossiliferous limestone (likely ammonite/gastropod-bearing) (Bioclastic limestone; predominantly calcite (CaCO₃)) — sedimentary

Fossiliferous limestone (likely ammonite/gastropod-bearing)

Bioclastic limestone; predominantly calcite (CaCO₃)

Unidentified dark pebble (Undetermined; possibly polished basalt, chert, or iron-rich stone) — mineral

Unidentified dark pebble

Undetermined; possibly polished basalt, chert, or iron-rich stone

Slag (Industrial Glass/Metal) (Ferrous slag or Glassy silicate byproduct) — Antropogenic rock (Man-made)

Slag (Industrial Glass/Metal)

Ferrous slag or Glassy silicate byproduct

Antropogenic rock (Man-made)

Ferruginous Sandstone (Ironstone Conglomerate fragments) (Ferruginous clastic sedimentary rock (SiO2 cemented by Fe2O3)) — sedimentary

Ferruginous Sandstone (Ironstone Conglomerate fragments)

Ferruginous clastic sedimentary rock (SiO2 cemented by Fe2O3)

Possible tektite or dark volcanic rock fragment (Uncertain; likely natural silicate glass (tektite) or basalt) — mineral

Possible tektite or dark volcanic rock fragment

Uncertain; likely natural silicate glass (tektite) or basalt

Ferruginous Slag (Iron Smelting Byproduct) (Anthropogenic Vitreous Silicate (often containing Fayalite: Fe2SiO4)) — Mineraloid/Anthropogenic (Technofossil)

Ferruginous Slag (Iron Smelting Byproduct)

Anthropogenic Vitreous Silicate (often containing Fayalite: Fe2SiO4)

Mineraloid/Anthropogenic (Technofossil)

Iron-rich slag or limonite-bearing rock (Hydrated iron oxides, chiefly limonite/goethite (FeO(OH)·nH₂O); possibly industrial iron slag) — mineral

Iron-rich slag or limonite-bearing rock

Hydrated iron oxides, chiefly limonite/goethite (FeO(OH)·nH₂O); possibly industrial iron slag

Tektite (specifically Indochinite) (Tektite (Natural silica glass)) — Mineraloid (Impact glass)

Tektite (specifically Indochinite)

Tektite (Natural silica glass)

Mineraloid (Impact glass)

Iron-stained weathered stone (tentative) (Undetermined; possibly weathered iron-rich basalt or concretion) — mineral

Iron-stained weathered stone (tentative)

Undetermined; possibly weathered iron-rich basalt or concretion

Weathered quartz-rich rock fragment (Likely quartz-bearing sandstone or granitic rock; exact identification is uncertain from the image) — mineral

Weathered quartz-rich rock fragment

Likely quartz-bearing sandstone or granitic rock; exact identification is uncertain from the image

Olivine in Basalt (Peridotite / Forsterite ((Mg,Fe)2SiO4)) — igneous

Olivine in Basalt

Peridotite / Forsterite ((Mg,Fe)2SiO4)

Limonite Concretion (Goonie or Rattlestone) (Limonite (FeO(OH)·nH2O)) — sedimentary

Limonite Concretion (Goonie or Rattlestone)

Limonite (FeO(OH)·nH2O)

Olivine (Peridotite) ((Mg,Fe)2SiO4 (Magnesium Iron Silicate)) — igneous

Olivine (Peridotite)

(Mg,Fe)2SiO4 (Magnesium Iron Silicate)

Olivine ((Mg,Fe)2SiO4) — mineral

Olivine

(Mg,Fe)2SiO4