gemstone

Polished brown stone, possibly tiger’s eye

Undetermined; tiger’s eye is quartz (SiO₂) with fibrous crocidolite-derived inclusions

AI-generated identification · may be incorrect

Glossy, rounded brown specimen with golden tones; the image does not show enough detail to confirm chatoyancy, hardness, or crystal structure. If tiger’s eye, hardness is about 7 Mohs and luster is silky to vitreous.

Identified September 23, 2026More gemstone →

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At a glance

Common name: Polished brown stone, possibly tiger’s eye
Scientific name: Undetermined; tiger’s eye is quartz (SiO₂) with fibrous crocidolite-derived inclusions
Category: gemstone
Identified: September 23, 2026
Method: Standard

AI Estimated Value

If a small, genuine tiger’s-eye tumbled stone: approximately $2–$15; identity and value cannot be confirmed from the image.

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

Could be a polished natural mineral or rock; its identity and geological age cannot be established from this image. Tiger’s eye forms when quartz replaces fibrous crocidolite, commonly in iron-rich settings.

Uses & applications

Tiger’s eye is used in beads, cabochons, and ornamental objects; other brown polished stones may have different uses.

Geological facts

A moving band of reflected light (chatoyancy) is a key tiger’s-eye feature, but it is not clearly distinguishable here.

Field identification & locations

The image shows a glossy, tumbled-looking brown object, but not diagnostic features or scale; inspect for a shifting golden light band and test hardness only on an inconspicuous area. Tiger’s eye is notably found in South Africa and Western Australia.