gemstone

Faceted red gemstone, likely garnet

Most likely almandine garnet (Fe₃Al₂(SiO₄)₃); identification from the photo is tentative.

AI-generated identification · may be incorrect

Small oval faceted stone, deep red to reddish-brown with a vitreous luster. Garnet hardness is about 6.5–7.5 Mohs and its crystal system is isometric; cleavage is absent or indistinct.

Identified September 30, 2026More gemstone →

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Physical properties

Small oval faceted stone, deep red to reddish-brown with a vitreous luster. Garnet hardness is about 6.5–7.5 Mohs and its crystal system is isometric; cleavage is absent or indistinct.

Formation & geological history

Garnets form in metamorphic rocks and, less commonly, igneous rocks; weathering can concentrate them in stream or beach deposits. The pictured stone has been cut and polished, so its age and source cannot be determined visually.

Uses & applications

Garnets are used in jewelry and as industrial abrasives; this appears to be a jewelry-cut stone.

Geological facts

“Garnet” describes a group of related minerals, including almandine, pyrope, and spessartine, with colors spanning red, orange, green, and other hues.

Field identification & locations

A red color and faceted cut fit garnet, but ruby, spinel, and glass can look similar; gemological testing is needed for confirmation. Garnets occur worldwide, including India, Sri Lanka, Madagascar, and the United States.