mineral

Blue quartz (likely dyed or synthetic-treated quartz beads)

Quartz, silicon dioxide (SiO₂)

AI-generated identification · may be incorrect

Hardness 7 Mohs; transparent to translucent vivid blue with vitreous luster. Hexagonal crystal structure, no cleavage, conchoidal fracture; the perfectly round, uniformly colored beads suggest treatment or imitation rather than natural blue quartz.

Identified August 28, 2026More mineral →

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Physical properties

Formation & geological history

Natural quartz forms in hydrothermal veins and igneous cavities over varied geological ages; blue color may result from inclusions, irradiation, or dyeing. These beads are drilled, polished, and possibly surface-treated.

Uses & applications

Used primarily for inexpensive jewelry and decorative bracelets; untreated natural blue quartz is collectible but uncommon. Typical bracelet value is about $5–$30, or $30–$100 if confirmed natural high-quality material.

Geological facts

Natural blue quartz is usually pale blue and inclusion-rich; intense cobalt-blue color commonly indicates dye, coating, or glass. Quartz has no cleavage and scratches ordinary glass.

Field identification & locations

Common sources of quartz include Brazil, Madagascar, India, and the United States. Check for dye concentration in cracks or drill holes, glassy bubbles, and scratch resistance; laboratory testing is needed for certainty.