gemstone

Beaded stone necklace, likely yellow agate or chalcedony

Chalcedony (microcrystalline quartz, SiO₂); exact stone cannot be confirmed from the photo

AI-generated identification · may be incorrect

Translucent cream-yellow beads with a waxy to vitreous luster; quartz hardness is about 6.5–7 Mohs, with no visible cleavage. The beads are polished and drilled; small gold-colored spacers appear to be metal.

Identified October 16, 2026More gemstone →

Explore Beaded stone necklace, likely yellow agate or chalcedony in the encyclopedia →

Identify your own rocks.

Get a report just like this from any photo, free.

App Store Google Play

At a glance

Common name: Beaded stone necklace, likely yellow agate or chalcedony
Scientific name: Chalcedony (microcrystalline quartz, SiO₂); exact stone cannot be confirmed from the photo
Category: gemstone
Identified: October 16, 2026
Method: Standard

AI Estimated Value

Approximately $10–$60 for a commonplace necklace, depending on bead material, workmanship, and metal components.

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 chalcedony, it formed as silica-rich fluids deposited quartz in rock cavities, commonly during volcanic or sedimentary processes. The necklace’s age and the beads’ geological source cannot be determined visually.

Uses & applications

Primarily jewelry and personal adornment; chalcedony is also used for carvings and ornamental objects.

Geological facts

Chalcedony is a broad term for microcrystalline quartz and includes agate, which is typically banded; no diagnostic banding is evident here.

Field identification & locations

A scratch test or gemological examination can distinguish chalcedony from look-alike materials such as glass or resin; the image alone does not establish the stone identity. Chalcedony occurs worldwide, including Brazil, India, and the United States.