Rock Identifier
Red gemstone ring, likely ruby or synthetic ruby (Corundum (Al₂O₃), chromium-colored; the image alone cannot confirm whether it is natural or synthetic) — gemstone
gemstone

Red gemstone ring, likely ruby or synthetic ruby

Corundum (Al₂O₃), chromium-colored; the image alone cannot confirm whether it is natural or synthetic

AI-generated identification · may be incorrect

Oval faceted, vivid red stone in a metal setting. Ruby has Mohs hardness 9 and a trigonal crystal structure; its luster is vitreous. Metal setting and reflections prevent reliable identification from appearance alone.

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Physical properties

Oval faceted, vivid red stone in a metal setting. Ruby has Mohs hardness 9 and a trigonal crystal structure; its luster is vitreous. Metal setting and reflections prevent reliable identification from appearance alone.

Formation & geological history

Natural ruby forms during metamorphism or in some igneous-related deposits; synthetic ruby is lab-grown. The ring’s stone age and origin cannot be determined visually.

Uses & applications

Ruby is used in jewelry and, because of its hardness, specialized watch and laser components.

Geological facts

Natural and synthetic rubies can look alike; gemological testing is needed to distinguish them and assess treatments.

Field identification & locations

A ruby may show chromium-related red color and strong durability, but color alone is not diagnostic. Common sources include Myanmar, Mozambique, Thailand, and Sri Lanka.