gemstone

Polished white chalcedony or quartz pendant

Microcrystalline quartz (chalcedony), SiO₂; exact identification is uncertain from the image

AI-generated identification · may be incorrect

White, translucent, rounded and highly polished with a glassy-to-waxy luster; quartz hardness is 7 Mohs, no visible cleavage, cryptocrystalline structure, and specific gravity about 2.6. It appears to be a small drilled or mounted cabochon, possibly quartz rather than chalcedony.

Identified August 15, 2026More gemstone →

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At a glance

Common name: Polished white chalcedony or quartz pendant
Scientific name: Microcrystalline quartz (chalcedony), SiO₂; exact identification is uncertain from the image
Category: gemstone
Identified: August 15, 2026
Method: Standard

AI Estimated Value

Approximately $5–$30 for a small polished pendant; higher only with verified provenance, unusual inclusions, or fine craftsmanship.

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

Quartz-rich material forms in silica-bearing fluids filling cavities and fractures, commonly in volcanic rocks; chalcedony may form during low-temperature alteration over millions of years. The pendant has been human-shaped and polished.

Uses & applications

Used for pendants, beads, carvings, and ornamental objects; common polished pieces have modest commercial value.

Geological facts

White chalcedony is often called white agate when banding or translucency is present, though no banding is visible here. Similar-looking man-made glass or resin cannot be ruled out from a photograph alone.

Field identification & locations

Look for natural internal cloudiness, bubbles absent, cool feel, and scratch resistance; quartz will scratch ordinary glass, while glass may show round bubbles. Common sources include Brazil, Uruguay, India, Madagascar, and the United States.