gemstone

Tumbled red jasper and blue-green turquoise (likely dyed or stabilized)

Red jasper: microcrystalline quartz, SiO₂, colored by iron oxides; turquoise: hydrated copper-aluminum phosphate, CuAl₆(PO₄)₄(OH)₈·4H₂O

AI-generated identification · may be incorrect

Both are polished/tumbled, opaque stones with waxy to vitreous luster. Jasper has Mohs hardness about 6.5–7; turquoise about 5–6, with turquoise typically showing blue-green color and occasional matrix veining.

Identified August 11, 2026More gemstone →

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At a glance

Common name: Tumbled red jasper and blue-green turquoise (likely dyed or stabilized)
Scientific name: Red jasper: microcrystalline quartz, SiO₂, colored by iron oxides; turquoise: hydrated copper-aluminum phosphate, CuAl₆(PO₄)₄(OH)₈·4H₂O
Category: gemstone
Identified: August 11, 2026
Method: Standard

AI Estimated Value

About $2–$15 per tumbled stone; untreated high-quality turquoise may reach $20–$200+.

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

Jasper forms when silica-rich fluids replace or cement volcanic and sedimentary material; turquoise forms in arid-zone copper deposits through low-temperature alteration. Their ages vary widely, commonly tens to hundreds of millions of years.

Uses & applications

Used for cabochons, beads, carvings, ornaments, and collecting; jasper is also used decoratively in tiles and countertops. Turquoise is valued in jewelry, especially from stable, richly colored deposits.

Geological facts

The red specimen is consistent with iron-rich jasper, while the blue specimen may also be dyed howlite or magnesite rather than natural turquoise. A perfectly uniform bright blue color often indicates treatment.

Field identification & locations

Jasper is identified by its opaque red color and fine grain; turquoise is softer, opaque, and often matrix-bearing. Common sources include the western United States, Mexico, Iran, China, Australia, and Egypt.