gemstone

Mixed tumbled gemstone collection

Varied minerals, likely including amethyst, sodalite/lapis lazuli, quartzite or aventurine, jasper, and agate/chalcedony

AI-generated identification · may be incorrect

Polished stones with vitreous to waxy luster and rounded surfaces; apparent hardness ranges roughly Mohs 5–7. Colors include purple, blue, green, brown, pink, and gray, but individual mineral identification is uncertain from the photograph.

Identified August 11, 2026More gemstone →

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At a glance

Common name: Mixed tumbled gemstone collection
Scientific name: Varied minerals, likely including amethyst, sodalite/lapis lazuli, quartzite or aventurine, jasper, and agate/chalcedony
Category: gemstone
Identified: August 11, 2026
Method: Standard

AI Estimated Value

Approximately $1–$10 per stone, or $10–$30 for the pictured mixed set; higher values require confirmed, naturally colored gem material.

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

These are natural mineral or rock fragments shaped and polished by tumbling; their geological ages and formation environments vary by specimen, commonly hydrothermal veins, metamorphic rocks, or silica-rich volcanic deposits.

Uses & applications

Used for jewelry, crafts, décor, meditation stones, and educational collections. Common tumbled specimens generally have modest commercial value.

Geological facts

The purple stone may be amethyst, blue stones may be sodalite or dyed material, and green stones may be aventurine, serpentine, or dyed chalcedony; color alone is not diagnostic.

Field identification & locations

Identify each piece using streak, hardness, translucency, cleavage, magnetism, and specific gravity; polished surfaces obscure diagnostic textures. Common sources include Brazil, India, Madagascar, Africa, and the United States.