gemstone

Faceted colorless gemstone, likely quartz (rock crystal) or synthetic glass imitation

Quartz: silicon dioxide (SiO₂), trigonal crystal system; exact identity cannot be confirmed visually

AI-generated identification · may be incorrect

Colorless, transparent, vitreous luster, faceted brilliant-style cut, and no visible natural crystal faces. Quartz hardness is Mohs 7, specific gravity 2.65, and lacks cleavage; glass is softer (about 5–5.5) and commonly shows bubbles or curved facet wear.

Identified September 16, 2026More gemstone →

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At a glance

Common name: Faceted colorless gemstone, likely quartz (rock crystal) or synthetic glass imitation
Scientific name: Quartz: silicon dioxide (SiO₂), trigonal crystal system; exact identity cannot be confirmed visually
Category: gemstone
Identified: September 16, 2026
Method: Standard

AI Estimated Value

About $5–$30 if common quartz or glass; roughly $30–$200+ for attractive natural quartz, depending on clarity, size, and confirmed identity.

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

Natural quartz forms in hydrothermal veins and cavities, commonly from Paleozoic to younger geological settings. The pictured cut object may also be laboratory-grown quartz or lead-free glass, so age and formation cannot be established from the image.

Uses & applications

Used as a gemstone, ornament, and collector piece; quartz is also important in electronics and industry. Glass imitations have mainly decorative value.

Geological facts

A loupe, refractometer, polariscope, and hardness testing are needed for reliable identification. Faceting and the unusually large, highly uniform appearance suggest a cut specimen rather than a natural crystal.

Field identification & locations

Check for gas bubbles, curved facet edges, scratches, and double refraction; quartz can scratch glass, while ordinary glass generally cannot scratch quartz. Natural gem-quality quartz is common in Brazil, Madagascar, Arkansas, and the Alps.