mineral

Turquoise-colored bead necklace (likely dyed howlite or magnesite)

Likely dyed Ca₂B₅SiO₉(OH)₅ (howlite) or MgCO₃ (magnesite); turquoise is CuAl₆(PO₄)₄(OH)₈·4H₂O

AI-generated identification · may be incorrect

Opaque bright blue beads with dark web-like veining and a polished surface. The image cannot confirm the material; genuine turquoise is Mohs 5–6, while howlite is about 3.5 and magnesite about 3.5–4.5.

Identified October 9, 2026More mineral →

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At a glance

Common name: Turquoise-colored bead necklace (likely dyed howlite or magnesite)
Scientific name: Likely dyed Ca₂B₅SiO₉(OH)₅ (howlite) or MgCO₃ (magnesite); turquoise is CuAl₆(PO₄)₄(OH)₈·4H₂O
Category: mineral
Identified: October 9, 2026
Method: Standard

AI Estimated Value

Approximately $5–$40 if dyed simulant; genuine turquoise necklaces vary widely, often $30–$300 or 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

The beads appear to imitate turquoise; howlite and magnesite form in evaporite or borate-rich deposits and are often dyed and shaped for jewelry. Genuine turquoise forms secondarily in oxidized copper deposits.

Uses & applications

Used as jewelry; comparable beads may be made from turquoise, dyed howlite, or dyed magnesite.

Geological facts

The vivid, unusually uniform blue and dark matrix are common in dyed turquoise simulants, but appearance alone is not definitive.

Field identification & locations

A scratch, magnification, or laboratory test can help distinguish materials; avoid damaging the beads. Howlite and magnesite are common in North America, while turquoise sources include Iran, the southwestern United States, and China.