gemstone

Faceted red garnet

Garnet group, likely almandine (Fe₃Al₂(SiO₄)₃)

AI-generated identification · may be incorrect

Deep red, vitreous luster, typically cubic crystal system; hardness 6.5–7.5 Mohs, no cleavage, specific gravity about 3.5–4.3. The photo does not establish the exact garnet species or whether the stone is natural or treated.

Identified October 11, 2026More gemstone →

Explore Faceted red garnet in the encyclopedia →

Identify your own rocks.

Get a report just like this from any photo, free.

App Store Google Play

Physical properties

Formation & geological history

Garnets form in metamorphic rocks, especially schist and gneiss, and sometimes in igneous rocks or alluvial deposits. Their ages vary widely with the host rock and deposit.

Uses & applications

Used in jewelry and, when not gem quality, as an abrasive and waterjet-cutting material.

Geological facts

Garnet is a mineral group rather than a single mineral; almandine is among the most common red gem varieties.

Field identification & locations

Look for a saturated red color, glassy brilliance, and absence of cleavage; garnets commonly occur in metamorphic terrains and stream gravels. Confirm species and treatments with gemological testing.