mineral

Iridescent polished/tumbled stone (likely coated quartz or glassy synthetic material)

Indeterminate; possibly quartz (SiO₂) with an artificial iridescent coating

AI-generated identification · may be incorrect

Small, rounded, highly polished object with mirror-like multicolored sheen; apparent hardness and crystal structure cannot be determined from the image. The uniform spherical shape and vivid surface suggest a coated or manufactured specimen rather than a naturally formed crystal.

Identified September 7, 2026More mineral →

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At a glance

Common name: Iridescent polished/tumbled stone (likely coated quartz or glassy synthetic material)
Scientific name: Indeterminate; possibly quartz (SiO₂) with an artificial iridescent coating
Category: mineral
Identified: September 7, 2026
Method: Standard

AI Estimated Value

$1-$15 if coated quartz or synthetic decorative material; substantially more only if testing confirms a rare natural gemstone.

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

If quartz, it formed from silica-rich hydrothermal or igneous fluids; the visible rainbow effect likely comes from thin-film coating or surface treatment applied after shaping. Geological age is indeterminate.

Uses & applications

Used mainly as a novelty, decorative, or metaphysical collectible; not suitable for construction or jewelry identification without testing.

Geological facts

Iridescence can result from interference in a thin coating, fracture surfaces, or metallic films; it is not diagnostic of a particular mineral.

Field identification & locations

Check with a loupe for coating wear, bubbles, seams, or glass-like conchoidal fractures; test hardness cautiously and inspect specific gravity. Common natural quartz is widespread, but this exact object may be a commercial craft sphere.