gemstone

Red garnet (possible rough gem fragment)

Likely almandine garnet, Fe₃Al₂(SiO₄)₃; identification from the image is uncertain

AI-generated identification · may be incorrect

Small translucent red-orange fragment with a vitreous-to-resinous luster and irregular fracture. Garnet has Mohs hardness 6.5–7.5 and a cubic crystal structure; this image does not show enough detail to confirm cleavage or species.

Identified October 1, 2026More gemstone →

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Physical properties

Formation & geological history

Garnets commonly form during metamorphism of aluminum-rich rocks, though some occur in igneous rocks; many formed in ancient mountain-building events. The specimen’s geological age and source cannot be determined visually.

Uses & applications

Garnet is used as an abrasive and, when clear and attractive, as jewelry or a collectible mineral.

Geological facts

Garnets are a mineral group, not a single species; red varieties include almandine, pyrope, and spessartine.

Field identification & locations

Look for high hardness, no obvious cleavage, and characteristic crystal forms; confirm species with testing rather than color alone. Garnets occur worldwide, including India, Sri Lanka, Africa, and the United States.