meteorite

Tumbled tektite (likely Indonesian or Philippine tektite)

Natural silica-rich impact glass; chiefly SiO₂ with minor Al₂O₃, FeO, MgO, CaO, and Na₂O

AI-generated identification · may be incorrect

Hardness about 5.5–6.5 Mohs; black to dark brown, resinous-to-vitreous luster, amorphous (noncrystalline), with a smooth, aerodynamic teardrop form and subtle flow texture. Exact identification is limited by the image; it could also be obsidian or slag.

Identified September 13, 2026More meteorite →

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At a glance

Common name: Tumbled tektite (likely Indonesian or Philippine tektite)
Scientific name: Natural silica-rich impact glass; chiefly SiO₂ with minor Al₂O₃, FeO, MgO, CaO, and Na₂O
Category: meteorite
Identified: September 13, 2026
Method: Standard

AI Estimated Value

About $5–$30 for a small common specimen; $30–$150+ if verified, unusually shaped, or from a desirable locality.

Not an official valuation

AI estimate for general interest only — not an appraisal. Actual value depends on condition, provenance, and market demand. Verify with a professional before buying, selling, or insuring.

This identification was generated by AI and may contain errors. Verify important details before relying on them — and never use an AI result to judge whether a specimen is safe to handle. Read the full disclaimer

Physical properties

Formation & geological history

Formed when a meteorite impact melted and rapidly quenched terrestrial surface rocks, commonly 0.8–0.7 million years ago for Australasian tektites. Found as scattered strewn-field fragments in Southeast Asia and Australia.

Uses & applications

Primarily a collector specimen, jewelry, and alleged metaphysical object; it has little industrial or construction use.

Geological facts

Tektites are natural glasses, not meteorites themselves, and their shapes may reflect flight through the atmosphere and later abrasion.

Field identification & locations

Look for low density, bubble-poor homogeneous glass, flow lines, and a natural sculpted surface; obsidian is usually more sharply conchoidal, while slag often contains abundant bubbles or metallic inclusions. Common sources include Indonesia, Thailand, Vietnam, the Philippines, and Australia.