mineral

Dyed turquoise-colored tumbled stone, possibly howlite or magnesite

Likely dyed Ca₃Si₃O₉(OH)₂ (howlite) or MgCO₃ (magnesite); exact material cannot be confirmed visually

AI-generated identification · may be incorrect

Opaque, polished blue stone with dark veining; likely Mohs 3–4 if howlite or magnesite. The vivid, uniform color suggests dye; natural turquoise is another possibility but cannot be established from the image.

Identified October 12, 2026More mineral →

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At a glance

Common name: Dyed turquoise-colored tumbled stone, possibly howlite or magnesite
Scientific name: Likely dyed Ca₃Si₃O₉(OH)₂ (howlite) or MgCO₃ (magnesite); exact material cannot be confirmed visually
Category: mineral
Identified: October 12, 2026
Method: Standard

AI Estimated Value

About $1–$10 for a small dyed tumbled stone; genuine turquoise can be worth considerably more.

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 dyed howlite or magnesite, the stone formed naturally in evaporite or hydrothermal settings and was later cut, tumbled, and colored; its geological age depends on the source deposit.

Uses & applications

Used for inexpensive jewelry, crafts, and decorative pieces; turquoise-colored dyed stones imitate turquoise.

Geological facts

Howlite and magnesite are commonly dyed to resemble turquoise, and appearance alone cannot reliably distinguish them.

Field identification & locations

A small blue tumbled specimen with dark matrix-like markings. A scratch, hardness, or dye test may help identify it, but testing could damage the polish; common sources include commercial lapidary supply chains worldwide.