mineral

Garnet (Tumbled)

Almandine / Pyrope Garnet (Fe3Al2(SiO4)3 to Mg3Al2(SiO4)3)

AI-generated identification · may be incorrect

Hardness: 6.5-7.5, Color: Deep reddish-brown to dark burgundy, Luster: Vitreous to resinous, Crystal Structure: Isometric (cubic), Cleavage: None (conchoidal fracture), Specific Gravity: 3.5-4.3

Hardness: 6

Identified July 23, 2026More mineral →

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Physical properties

Hardness: 6.5-7.5, Color: Deep reddish-brown to dark burgundy, Luster: Vitreous to resinous, Crystal Structure: Isometric (cubic), Cleavage: None (conchoidal fracture), Specific Gravity: 3.5-4.3

Formation & geological history

Formed under high temperatures and pressures during regional metamorphism of shale, schist, or gneiss, as well as in igneous rocks like granites and pegmatites.

Uses & applications

Used in jewelry, as an industrial abrasive (sandblasting, waterjet cutting), and widely collected as tumbled gemstones and healing stones.

Geological facts

Garnet is the official birthstone for January and has been used as a gemstone since the Bronze Age. The name comes from the Latin word 'granatus', meaning seed, due to its resemblance to pomegranate seeds.

Field identification & locations

Identified by its deep red hue, high density, and hardness. Common locations include India, Madagascar, Brazil, Sri Lanka, and parts of North America.