gemstone

Carved yellow chalcedony (likely citrine-colored quartz or agate)

Microcrystalline quartz, SiO₂; chalcedony/agate variety, possibly heat-treated or dyed

AI-generated identification · may be incorrect

Hardness about 6.5–7 Mohs; honey-yellow to brown-yellow, translucent, waxy-to-glassy luster, cryptocrystalline quartz structure, with no visible cleavage and conchoidal fracture. The beads and carved ornament are polished and shaped.

Identified September 21, 2026More gemstone →

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At a glance

Common name: Carved yellow chalcedony (likely citrine-colored quartz or agate)
Scientific name: Microcrystalline quartz, SiO₂; chalcedony/agate variety, possibly heat-treated or dyed
Category: gemstone
Identified: September 21, 2026
Method: Standard

AI Estimated Value

Approximately $20–$100 for a common bracelet; $100–$500+ if confirmed natural, high-quality chalcedony with exceptional carving.

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

Chalcedony forms when silica-rich groundwater fills cavities and fractures, commonly in volcanic rocks; coloration comes from iron impurities or treatment. The geological age depends on the source, often Cenozoic to older volcanic-hosted deposits.

Uses & applications

Used for beads, carvings, cabochons, and decorative jewelry; durable but less valuable than fine transparent citrine or natural rare-color agate.

Geological facts

The pictured material is not identifiable to an exact variety from appearance alone; yellow chalcedony is frequently marketed as citrine, honey jade, or yellow agate. Acid testing, refractive index, and spectroscopy can distinguish quartz from look-alike glass or resin.

Field identification & locations

Common sources include Brazil, Uruguay, India, Madagascar, Mexico, and China. Field clues are coolness, substantial weight, uniform waxy translucency, lack of bubbles, and resistance to scratching by steel; carved details indicate human processing.