gemstone

Red garnet (likely almandine or pyrope)

Garnet-group silicate; almandine Fe₃Al₂(SiO₄)₃ or pyrope Mg₃Al₂(SiO₄)₃

AI-generated identification · may be incorrect

Faceted deep-red transparent gemstone with vitreous luster; garnets are typically Mohs 6.5–7.5, cubic crystal system, and lack cleavage. Exact species and natural-versus-synthetic origin cannot be confirmed from the image alone.

Identified October 11, 2026More gemstone →

Explore Red garnet (likely almandine or pyrope) in the encyclopedia →

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Physical properties

Formation & geological history

Garnets form during metamorphism of aluminum-rich rocks and in some igneous rocks; many gem deposits are hundreds of millions to billions of years old.

Uses & applications

Used in jewelry and, in lower grades, as industrial abrasives and water-jet cutting media.

Geological facts

Red garnets commonly include almandine and pyrope; their color comes chiefly from iron or chromium.

Field identification & locations

Look for strong red color, high brilliance, and no cleavage; common sources include India, Sri Lanka, Mozambique, and the United States. A gemological test is needed for identification.