gemstone

Red glass-like crystal, likely synthetic ruby or red glass

Uncertain from image; possible corundum (ruby), Al₂O₃, or synthetic glass

AI-generated identification · may be incorrect

Bright transparent red color, vitreous luster, sharp faceted surfaces, and apparent conchoidal fractures; hardness cannot be determined visually. Natural ruby is Mohs 9, while ordinary glass is about 5–6.

Identified August 26, 2026More gemstone →

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At a glance

Common name: Red glass-like crystal, likely synthetic ruby or red glass
Scientific name: Uncertain from image; possible corundum (ruby), Al₂O₃, or synthetic glass
Category: gemstone
Identified: August 26, 2026
Method: Standard

AI Estimated Value

About $1–$20 if glass or common synthetic corundum; natural ruby can range from $50 to over $10,000 depending on quality and treatment.

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 ruby, it formed through metamorphic or igneous geological processes over millions to billions of years; synthetic ruby is laboratory-grown, and glass is human-made rather than geological.

Uses & applications

Ruby is used in jewelry, watch bearings, lasers, and abrasives; red glass is decorative and has little mineral or collector value.

Geological facts

The vivid uniform color, angular shape, and glassy fracture suggest a cut or broken synthetic material rather than a natural crystal. Identification requires hardness, refractive-index, and inclusion testing.

Field identification & locations

Check for natural inclusions with magnification, test hardness only on an inconspicuous area, and use a gem tester or refractometer; ruby commonly occurs in Myanmar, Mozambique, Sri Lanka, and Madagascar.