gemstone

Iridescent coated quartz (likely synthetic/display gemstone)

Quartz, silicon dioxide (SiO₂), likely faceted and surface-coated; exact material cannot be confirmed visually

AI-generated identification · may be incorrect

Mohs hardness 7; transparent, colorless to pale body with intense artificial rainbow interference colors, vitreous luster, and faceted crystal form. Quartz has trigonal crystal symmetry and no true cleavage, with conchoidal fracture; coating may alter apparent properties.

Identified August 11, 2026More gemstone →

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At a glance

Common name: Iridescent coated quartz (likely synthetic/display gemstone)
Scientific name: Quartz, silicon dioxide (SiO₂), likely faceted and surface-coated; exact material cannot be confirmed visually
Category: gemstone
Identified: August 11, 2026
Method: Standard

AI Estimated Value

About $5–$50 for common coated quartz; potentially $50–$200 for larger, exceptionally well-cut pieces, but identification and provenance are required.

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

Natural quartz crystallizes from silica-rich hydrothermal fluids or igneous pegmatites, commonly during the Precambrian to Phanerozoic; the vivid multicolor effect is probably from a thin-film coating or treated surface rather than natural coloration.

Uses & applications

Used mainly as a decorative or novelty gemstone, jewelry centerpiece, and collector specimen; coated pieces have limited durability because abrasion can remove the finish.

Geological facts

The rainbow flashes resemble aura quartz or mystic quartz, produced by thin-film interference. Facet geometry and unusually uniform saturated colors suggest treatment or synthetic production.

Field identification & locations

Check with magnification for coating wear, inspect facet junctions for peeling, and test hardness only inconspicuously; avoid acids, heat, and ultrasonic cleaning. Similar treated quartz is sold worldwide, especially from China and Brazil.