Rock Identifier
Tektite (Tektite (SiO2 impact glass)) — meteorite
meteorite

Tektite

Tektite (SiO2 impact glass)

AI-generated identification · may be incorrect

Hardness: 6-7, Color: Black to dark brown or green, Luster: Vitreous to dull, Crystal structure: Amorphous (glassy), Cleavage: None (conchoidal fracture), Specific gravity: 2.3-2.5

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Physical properties

Hardness: 6-7, Color: Black to dark brown or green, Luster: Vitreous to dull, Crystal structure: Amorphous (glassy), Cleavage: None (conchoidal fracture), Specific gravity: 2.3-2.5

Formation & geological history

Formed from terrestrial debris ejected during meteorite impacts, melting and rapidly cooling as it travels through the atmosphere. Ages vary by strewn field, typically thousands to millions of years old.

Uses & applications

Valued by collectors and used in unique jewelry pieces. Some cultures ascribe spiritual properties to them.

Geological facts

Tektites are found in distinct strewn fields globally, such as the Australasian, Central European, Ivory Coast, and North American fields. Moldavite is a well-known, green, translucent tektite.

Field identification & locations

Identify by their glassy texture, often pitted or grooved surface (regmaglypts), and lack of crystals. Found in specific geographic areas known as strewn fields.

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