Tektite (Indochinite)
Tektite (High-silica impact glass)
mineraloid
Category
Meteorite
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Weathered iron-rich mineral concretion
Likely limonite/goethite concretion (hydrated iron oxides), possibly a weathered ironstone fragment
mineral
Gold Nugget
Native Gold (Au)
mineral
Ferruginous Sandstone (Ironstone)
Sedimentary rock with high iron oxide content (Fe2O3 / FeO(OH))
sedimentary
Weathered granite or granitic gneiss pebble
Granite; chiefly quartz, feldspar, and mica
igneous
Likely basaltic rock fragment
Fine-grained mafic igneous rock, probably basalt (plagioclase–pyroxene ± olivine)
igneous
Peridot
Olivine (Mg, Fe)2SiO4
Mineral
Dark rounded pebble, possibly basalt
Basalt (fine-grained mafic volcanic rock; identification tentative from photograph)
igneous
Iron-rich slag or limonite-bearing rock
Hydrated iron oxides, chiefly limonite/goethite (FeO(OH)·nH₂O); possibly industrial iron slag
mineral
Possible tektite or dark volcanic rock fragment
Uncertain; likely natural silicate glass (tektite) or basalt
mineral
Tektite (Indochinite)
Tektite (Amorphous silica-rich impact glass)
igneous
Iron Meteorite (Individual)
Siderite (composed of Kamacite and Taenite minerals)
igneous
Iron-Nickel Meteorite
Siderite (Fe, Ni)
igneous
Iron Meteorite Fragment
Siderite (Geological term for iron meteorite class - Fe/Ni alloy)
igneous
Tektite (specifically Indochinite)
Tektite (Natural silica glass)
Mineraloid (Impact glass)
Tektite (Indochinite)
Tektite (Amorphous Silica Glass)
igneous
Weathered iron-rich rock, possibly laterite or limonite-bearing sandstone
Laterite/limonite-rich material; commonly dominated by goethite (FeO(OH)) and hydrated iron oxides
sedimentary
Black Dolomite
Bituminous Dolomite (CaMg(CO3)2)
sedimentary
Ferrochrome Slag
Anthropogenic slag (Fe-Cr alloy waste)
industrial byproduct
Gold Nugget
Gold (Au)
mineral
Iron-rich hematite/goethite concretion (likely limonite)
Hematite (Fe₂O₃) with goethite (FeO(OH)) and limonite
mineral
Gold
Gold (Native Element); Au
mineral
Sandstone (with Iron Siderite Concretion)
Arenite with Ironstone Concretion (FeCO3)
sedimentary
Slag
Anthropogenic Vitrification Product / Silicate Slag
Anthropogenic (Man-made industrial byproduct)
Libyan Desert Glass
Impactite silica glass (SiO2)
tektite (impact glass)
Tektite (Indochinite)
Tektite (SiO2 + Al2O3)
mineraloid
Slag (Industrial Glass/Metal Waste)
Artificial silicate/ferro-silicate byproduct
Mineraloid (Industrial byproduct)
Moldavite
Tektite (Amorphous Silica, SiO2 + Al2O3)
mineral
Native Gold Flake
Gold (Au)
mineral
Possible iron-rich basalt or industrial slag
Basalt, likely Fe–Mg silicate rock; exact identification is uncertain from the blurred image
igneous
Dark mafic rock, likely basalt
Basalt; chiefly plagioclase feldspar, pyroxene, and commonly olivine or iron-titanium oxides
igneous
Peridot
Olivine ((Mg, Fe)2SiO4)
mineral
Olivine (Dunite)
(Mg,Fe)2SiO4 (Magnesium Iron Silicate)
igneous
Tektite (Indochinite)
Tektite (High-silica natural glass)
igneous
Martian Meteorite (Black Beauty)
NWA 7034 (Northwest Africa 7034)
igneous
Libyan Desert Glass
Impact-melt silica glass (SiO2 + traces of Al, Fe, Ti)
mineral (Tektite/Impactite)
Weathered quartz-rich rock fragment
Likely quartz-bearing sandstone or granitic rock; exact identification is uncertain from the image
mineral
Tektite (Indochinite)
Natural glass (High-silica impact glass)
mineral
Tektite (Indochinite)
Impactite / Tektite (Silica-rich glass)
igneous
Tektite
Tektite (Natural Glassy Ejecta)
mineral
Moldavite
Moldavite (Siliceous vitreous substance)
tektite (natural glass)
Slag (Industrial)
N/A (Anthropogenic Slag)
industrial by-product