gemstone

Polished red garnet (likely almandine)

Almandine garnet, Fe₃Al₂(SiO₄)₃; identification from the photo is provisional

AI-generated identification · may be incorrect

Small rounded, polished deep burgundy-red stone with a vitreous-to-submetallic-looking reflection. Garnet hardness is about 6.5–7.5 Mohs; almandine crystallizes in the cubic system and has no cleavage.

Identified October 2, 2026More gemstone →

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Physical properties

Formation & geological history

Garnets commonly form during metamorphism of aluminum-rich rocks and may also occur in igneous rocks; almandine-bearing rocks span a wide range of geological ages.

Uses & applications

Used as a gemstone and, when lower grade, as an abrasive; polished cabochons are common in jewelry and collections.

Geological facts

Garnet is a mineral group, not a single species; color and appearance alone cannot confirm the variety.

Field identification & locations

Look for strong red color, glassy luster, and high hardness; garnet is found worldwide, including India, Sri Lanka, Madagascar, and the United States. The photo does not show enough detail for a firm identification.