Meteorite

Silicon Carbide (Carborundum)

Moissanite (SiC)

Tektite

Natural impact glass

Possible iron meteorite fragment

Iron meteorite, likely kamacite–taenite alloy

Iron-rich meteorite candidate

Probable stony-iron or iron meteorite; exact classification requires testing

Lunar Breccia Meteorite

Lunar Feldspathic Breccia

Iron-Nickel Meteorite

Siderite (Meteoric Iron-Nickel alloy)

Ironstone (Limonite/Goethite Concretion)

Ferruginous Sedimentary Rock (composed of Goethite FeO(OH) and Limonite)

Possible iron-rich meteorite fragment

Unclassified stony-iron or iron meteorite; terrestrial alternatives include magnetite or industrial slag

Tektite (Indochinite)

Tektite (Natural silica glass)

Lunar Meteorite (Feldspathic Breccia)

Lunar Achondrite (Regolith Breccia)

Iron meteorite (probable)

Iron–nickel meteorite, mainly kamacite and taenite (Fe–Ni alloy)

Likely iron meteorite (stony-iron or weathered iron-rich meteorite)

Provisional identification: meteoritic Fe–Ni alloy, mainly kamacite/taenite; exact classification requires chemical and petrographic testing

Possible weathered metallic meteorite fragment

Unclassified iron-rich meteorite; exact classification requires laboratory testing

Iron-rich meteorite candidate

Possible ordinary chondrite or iron meteorite fragment; exact classification requires laboratory testing

Dark rounded pebble

Likely basalt or fine-grained mafic volcanic rock

Iron-rich meteorite candidate

Unclassified stony-iron or iron meteorite; identification requires laboratory testing

Iron-rich meteorite candidate (weathered iron meteorite)

Likely Fe–Ni metal, commonly kamacite and taenite; definitive identification requires laboratory testing

Likely iron-rich rock or metallic mineral fragment

Uncertain; possibly limonite/goethite-rich material or weathered iron meteorite fragment

Iron meteorite (probable, possibly industrial iron slag)

Fe–Ni metallic alloy, commonly kamacite and taenite

Iron meteorite fragment (likely weathered meteorite)

Fe–Ni metal, commonly kamacite with taenite; possible stony-iron or iron-oxide fusion crust

Pseudometeorite ironstone or weathered metallic nodule

Uncertain; likely iron-oxide-rich limonite/goethite with magnetite or hematite

Iron Slag

Anthropogenic pyrometallurgical byproduct

Ferrochrome Slag

Anthropogenic silicate/oxide glass (Complex silicate matrix with Cr-Fe-Si inclusions)

Iron meteorite fragment (likely meteorite slice)

Fe–Ni metallic meteorite, possibly an octahedrite; exact classification requires laboratory analysis

Iron-rich chondritic meteorite candidate

Unclassified stony meteorite; possible ordinary chondrite (H/L type)

Slag

Anthropogenic Vitreous Silica/Iron oxides

Ferrous Slag

Iron/Steel Slag (Complex Calcium-Alumino-Silicates)

Slag (Industrial By-product)

Glassy silicate or metallic smelting residue

Indochinite Tektite

Tektite (high-silica impact glass)

Possible iron meteorite

Fe–Ni iron meteorite, possibly an ordinary chondrite or weathered iron-rich specimen

Iron-rich meteorite candidate

Undetermined meteoritic iron–nickel material; possibly an ordinary chondrite or weathered iron meteorite

Small metallic meteorite-like specimen

Unclassified iron-rich meteorite candidate; possibly an ordinary chondrite or terrestrial slag

Iron-rich meteorite candidate

Unclassified stony-iron or iron meteorite fragment

Iron-rich meteorite candidate (possibly stony-iron or iron meteorite)

Unclassified meteoritic material; likely Fe–Ni metal with weathering oxides

Libyan Desert Glass

Libyan Desert Glass (Tektite / Impact Glass)

Iron-rich meteorite candidate

Unclassified meteoritic iron–stone material; possible stony-iron meteorite or terrestrial ironstone

Tektite (Indochinite)

Tektite (High-silica natural glass)

Tektite (Indochinite)

Tektite (SiO2 + Al2O3, Glassy Melts)

Iron Slag

Anthropogenic Vitreous Ferrous Silicate

Iron Meteorite / Limonite-coated Meteorite / Iron Nodule

Iron-Nickel Alloy (Kamacite and Taenite) with weathering crust

Possible tektite (natural impact glass)

Impact glass; composition and origin cannot be confirmed from the image

Iron meteorite (likely weathered octahedrite)

Fe–Ni kamacite–taenite alloy, possibly a Canyon Diablo-type specimen