Moldavite
Moldavite (Siliceous vitreous substance)
tektite (natural glass)
Category
Tektite (Impact Glass)
Browse tektite (impact glass) specimens identified by the Rock Identifier community.
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Moldavite
Silica glass with small amounts of aluminum, iron, and other elements
Mineraloid / Tektite
Tektite (likely Indochinite)
Tektite (high-silica impact glass)
igneous
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
Tektite (Indochinite)
Impactite (Natural Glass)
meteorite
Tektite (Indochinite)
Tektite (High-silica natural glass, primarily SiO2 with Al2O3)
igneous
Tektite (Indochinite)
Tektite (High-silica natural glass)
igneous
Moldavite
Tektite (Natural Silicate Glass)
gemstone
Tektite (Indochinite)
Tektite (natural glass, SiO2 + Al2O3)
mineral
Tektite (Indochinite)
Tektite (Lechatelierite-rich silica glass)
Mineral-like (Natural Glass)
Tektite (Indochinite)
Tektite (High-silica natural glass)
meteorite
Tektite (Indochinite)
Tektite (Amorphous Silica Glass)
igneous
Tektite (Indochinite)
Tektite (High-silica natural glass)
mineraloid / impact glass
Tektite (Indochinite)
Tektite (SiO2 + Al2O3, Glassy Melts)
igneous
Tektite (Indochinite)
Tektite - High-silica amorphous glass (SiO2 + Al2O3)
mineraloid
Tektite (Indochinite)
Tektite (High-silica natural glass)
mineraloid
Tektite (Indochinite)
Tektite (High-silica impactite glass)
meteorite
Tektite (Indochinite)
Tektite (Amorphous Meteoritic Glass)
igneous
Tektite (Indochinite)
Tektite (Silica-rich natural glass)
mineral
Tektite (Indochinite)
Tektite (High-silica natural glass)
igneous
Libyan Desert Glass
Impactite (High-silica tektite)
mineral
Tektite (likely Australite)
Tektite (no specific chemical formula as it's a natural glass of variable composition, mostly SiO2, Al2O3, FeO, MgO, CaO, K2O, Na2O, TiO2)
Mineral (specifically a mineraloid)
Moldavite
Tektite (Natural Silica Glass)
meteorite
Libyan Desert Glass
Tektite (high-silica impact glass), SiO2
mineral
Tektite (Indochinite)
Tektite (Amorphous Silica Glass), SiO2(Al2O3)
igneous
Tumbled tektite (likely Indonesian or Philippine tektite)
Natural silica-rich impact glass; chiefly SiO₂ with minor Al₂O₃, FeO, MgO, CaO, and Na₂O
meteorite
Tektite (Indochinite)
Tektite (SiO2 + Al2O3)
mineraloid
Moldavite
Moldavite (Silica-rich glass, SiO2 + Al2O3)
tektite
Tektite (Indochinite)
Tektite (High-silica natural glass)
mineralogical glass/meteorite impactite
Tumbled moldavite specimens
Moldavite (natural tektite; silica-rich impact glass), approximately SiO₂ 75–80%
gemstone
Libyan Desert Glass
Tektite (high-silica impact glass), SiO2 + tracing minerals
mineraloid / impactite
Polished tektite (likely indochinite)
Natural silica-rich impact glass; mainly SiO₂ with Al₂O₃, FeO, MgO, CaO, and Na₂O
mineral
Moldavite
Tektite (Silicates with aluminum, iron, manganese, and potassium oxide glass)
meteorite
Green obsidian (likely moldavite)
Natural volcanic glass; if extraterrestrial-impact glass, moldavite (tektite)
gemstone
Moldavite
SiO2 (+ Al2O3, FeO, K2O) - Natural Tektite Glass
gemstone
Moldavite
Tektite (Silica Glass - SiO2 + Al2O3, FeO, MgO, CaO, Na2O, K2O)
gemstone
Libyan Desert Glass
Impact-melt silica glass (SiO2 + traces of Al, Fe, Ti)
mineral (Tektite/Impactite)
Libyan Desert Glass
Libyan Desert Glass (Impactite / High-silica Lechatelierite)
mineral
Libyan Desert Glass
Libyan Desert Glass (Impactite)
meteorite
Libyan Desert Glass
Impactite (vitreous silica), SiO2
mineral
Chert (River Pebble)
Microcrystalline Silica (SiO2)
sedimentary