gemstone

Orange tumbled stone, possibly carnelian

Likely chalcedony, a microcrystalline variety of quartz (SiO₂); exact identification is uncertain from the image

AI-generated identification · may be incorrect

Opaque to slightly translucent orange-peach, with a smooth, matte-to-waxy surface and no visible crystal faces. If chalcedony, hardness is about 6.5–7 on the Mohs scale and its crystal structure is trigonal at the microscopic level.

Identified September 23, 2026More gemstone →

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At a glance

Common name: Orange tumbled stone, possibly carnelian
Scientific name: Likely chalcedony, a microcrystalline variety of quartz (SiO₂); exact identification is uncertain from the image
Category: gemstone
Identified: September 23, 2026
Method: Standard

AI Estimated Value

About $1–$10 for a small common tumbled piece; higher value would require confirmed identity and notable quality.

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 fluids deposit quartz in cavities and fractures, often in volcanic rocks; its deposits span many geological ages. The smooth shape suggests tumbling or other surface shaping.

Uses & applications

Used for beads, cabochons, carvings, and decorative pieces; this small specimen appears primarily suitable for collecting or craft use.

Geological facts

Orange chalcedony is often sold as carnelian, though color alone cannot confirm the variety or rule out dyed material.

Field identification & locations

Look for a waxy luster, dense texture, and hardness sufficient to scratch glass; common sources include Brazil, India, Uruguay, and Madagascar. A close inspection or gemological test is needed for reliable identification.