mineral

Tumbled purple stone, possibly lepidolite or purple jasper

Likely lepidolite mica (K(Li,Al)₃(Si,Al)₄O₁₀(F,OH)₂) or quartz-rich purple jasper; identification is uncertain from the photograph

AI-generated identification · may be incorrect

Gray-lavender, rounded and polished, with a dull to slightly vitreous luster and dark mottling. If lepidolite, hardness is about 2.5–3; if jasper, about 6.5–7 Mohs; crystal structure and cleavage are not visible.

Identified August 19, 2026More mineral →

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At a glance

Common name: Tumbled purple stone, possibly lepidolite or purple jasper
Scientific name: Likely lepidolite mica (K(Li,Al)₃(Si,Al)₄O₁₀(F,OH)₂) or quartz-rich purple jasper; identification is uncertain from the photograph
Category: mineral
Identified: August 19, 2026
Method: Standard

AI Estimated Value

Typically $2–$15 for a common tumbled stone; unusual color, pattern, or confirmed mineral identity may bring $20–$50.

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

Lepidolite forms in lithium-rich granitic pegmatites, while purple jasper forms when silica-rich fluids replace or cement volcanic or sedimentary material. The specimen appears tumbled and surface-polished rather than naturally weathered.

Uses & applications

Small pieces are sold as lapidary material, decorative stones, and metaphysical collectibles; jasper may be cut into cabochons, beads, and ornaments. Lepidolite is also an uncommon lithium-bearing ore.

Geological facts

The image does not show diagnostic crystals, banding, or cleavage, so a firm identification requires hardness, streak, and specific-gravity tests. A glass-scratch test can distinguish harder jasper from soft lepidolite, though it may damage the stone.

Field identification & locations

Common sources include Brazilian pegmatites for lepidolite and India, Madagascar, Brazil, and the western United States for jasper. Inspect under magnification for visible mica flakes, which favor lepidolite.