Rock Identifier
Possible tektite (natural impact glass) (Impact glass; composition and origin cannot be confirmed from the image) — meteorite
meteorite

Possible tektite (natural impact glass)

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

AI-generated identification · may be incorrect

Black, glossy, irregular and deeply sculpted surface. Tektites are usually amorphous silica-rich glass (Mohs about 5–6), with no cleavage; appearance alone cannot distinguish one from slag or other glassy material.

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Physical properties

Black, glossy, irregular and deeply sculpted surface. Tektites are usually amorphous silica-rich glass (Mohs about 5–6), with no cleavage; appearance alone cannot distinguish one from slag or other glassy material.

Formation & geological history

Tektites form when meteorite impacts melt and eject terrestrial material that cools rapidly. A specific impact event, age, and locality cannot be determined from the photograph.

Uses & applications

Primarily collected as a natural-glass specimen; some verified tektites are used in jewelry.

Geological facts

The ridged, glossy form is compatible with a tektite but is not diagnostic; industrial slag can look similar.

Field identification & locations

Check for a documented source, glassy fracture, and laboratory composition; avoid identifying it as a meteorite based on appearance alone. Tektites occur in strewn fields such as Southeast Asia and Australasia.