mineral

Turquoise-colored bead necklace, likely dyed howlite or magnesite

Possibly dyed CaCO₃ (howlite) or MgCO₃ (magnesite); turquoise is CuAl₆(PO₄)₄(OH)₈·4H₂O

AI-generated identification · may be incorrect

Opaque, polished blue-green beads with a glossy luster; hardness and crystal structure cannot be identified from the image. The uniform color and lack of visible matrix make imitation or dyed material plausible.

Identified October 8, 2026More mineral →

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At a glance

Common name: Turquoise-colored bead necklace, likely dyed howlite or magnesite
Scientific name: Possibly dyed CaCO₃ (howlite) or MgCO₃ (magnesite); turquoise is CuAl₆(PO₄)₄(OH)₈·4H₂O
Category: mineral
Identified: October 8, 2026
Method: Standard

AI Estimated Value

About $5–$30 for a costume necklace with dyed substitutes; genuine turquoise jewelry can range from tens to hundreds of dollars depending on quality, provenance, and workmanship.

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 genuine turquoise, it forms as a secondary copper phosphate in arid-zone weathering deposits, commonly in old, geologically variable deposits. The beads are cut and polished; their material cannot be confirmed visually.

Uses & applications

Jewelry and ornamental use; genuine turquoise is also collected and sometimes used in decorative inlay.

Geological facts

Turquoise is a hydrated copper-aluminum phosphate; its color ranges from sky blue to green and may include brown or black matrix veining.

Field identification & locations

The photograph does not establish whether these are turquoise or dyed substitutes. Look for natural matrix and variation, and use gemological testing or seller documentation; common sources of genuine turquoise include the southwestern United States, Iran, and China.