Tektite (Indochinite)
Tektite (Lechatelierite-rich silica glass)
Mineral-like (Natural Glass)
Category
Mineraloid (Impact Glass)
Browse mineraloid (impact glass) specimens identified by the Rock Identifier community.
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Tektite
Indochinite (Tektite)
igneous
Tektite (Indochinite)
Tektite (Natural Glass, SiO2 + Al2O3)
mineral
Tektite (Indochinite)
Tektite (High-silica natural glass, primarily SiO2 with Al2O3)
igneous
Tektite (Indochinite)
Impactite (Natural Glass)
meteorite
Tektite (Indochinite)
Tektite (High-silica amorphous glass)
igneous
Tektite
Tektite (meteoritic glass)
meteorite
Libyan Desert Glass
Libyan Desert Glass (Tektite / Impact Glass)
meteorite
Tektite (Indochinite)
Tektite (High-silica natural glass)
meteorite
Tektite (Indochinite)
Tektite (High-silica impact glass)
igneous
Tektite (Indochinite)
Tektite (Amorphous Silica Glass)
igneous
Tektite (Indochinite)
Tektite (natural glass, SiO2 + Al2O3)
mineral
Libyan Desert Glass
Impactite (High-silica tektite)
mineral
Libyan Desert Glass
Libyan Desert Glass (Impactite)
meteorite
Mahogany Obsidian
Volcanic glass (high silica) with inclusions of Magnetite or Hematite
igneous
Obsidian
Volcanic glass (SiO2 + impurities)
igneous
Libyan Desert Glass
Impactite (vitreous silica), SiO2
mineral
Moldavite
Tektite (Silicates with aluminum, iron, manganese, and potassium oxide glass)
meteorite
Tektite (Indochinite)
Tektite (Silica-rich natural glass)
mineral
Tektite
Tektite (Natural Glassy Ejecta)
mineral
Chert (River Pebble)
Microcrystalline Silica (SiO2)
sedimentary
Tumbled moldavite specimens
Moldavite (natural tektite; silica-rich impact glass), approximately SiO₂ 75–80%
gemstone
Tektite (Indochinite)
Tektite (Amorphous silica-rich impact glass)
igneous
Moldavite
Tektite (Impact Glass), ~80% SiO2 + Al2O3
tektite
Raw green fluorite (probable)
Fluorite, calcium fluoride (CaF₂)
mineral
Tumbled milky quartz
Quartz (silicon dioxide, SiO₂)
mineral
Libyan Desert Glass
Libyan Desert Glass (SiO2 with trace elements)
mineral (impactite)
Obsidian
Volcanic Glass (Amorphous silicon dioxide with impurities)
igneous
Libyan Desert Glass
Tektite (high-silica impact glass), SiO2
mineral
Tektite (Indochinite)
Tektite (High-silica impactite glass)
meteorite
Polished tektite (likely indochinite)
Natural silica-rich impact glass; mainly SiO₂ with Al₂O₃, FeO, MgO, CaO, and Na₂O
mineral
Possible tektite or volcanic glass specimen
Natural silica glass; composition commonly near SiO₂, but exact identification requires chemical testing
mineral
Tektite (Indochinite)
Tektite (High-silica natural glass)
igneous
Quartz (River Pebble)
Silicon Dioxide (SiO2)
mineral
Chert / Quartz Pebble
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Tektite
Impactite (Natural Silicate Glass)
meteorite
Snowflake Obsidian
Spherulitic Volcanic Glass (primarily SiO2)
igneous
Libyan Desert Glass
Impact-melt silica glass (SiO2 + traces of Al, Fe, Ti)
mineral (Tektite/Impactite)
Tektite (Indochinite)
Tektite (Natural silica glass)
igneous
Quartzite Pebble
Metamorphosed Quartz Sandstone (SiO2)
metamorphic
Obsidian
Volcanic Glass (SiO2 rich)
igneous
Snowflake Obsidian
Spherulitic Obsidian (Volcanic Glass with Cristobalite inclusions)
igneous