metamorphic

Possible garnet-bearing rock

Likely almandine garnet in a mica-rich metamorphic matrix; exact identification is uncertain from the image

AI-generated identification · may be incorrect

The specimen appears reddish-purple and coarse-grained with a dull to slightly sparkling surface. Garnet has Mohs hardness 6.5–7.5 and cubic crystals, but the pictured piece’s composition and properties cannot be confirmed visually.

Identified October 4, 2026More metamorphic →

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Physical properties

Formation & geological history

Garnet commonly forms during regional metamorphism of aluminum-rich rocks, often in schist; such deposits range widely in geological age.

Uses & applications

Garnet is used as an abrasive and, when transparent and attractive, as a gemstone; rough matrix specimens are mainly collected.

Geological facts

Almandine is the most common garnet species and is often found with mica and quartz in metamorphic rocks.

Field identification & locations

A garnet-bearing specimen may show hard, glassy red crystals embedded in softer, flaky mica. Confirm by examining crystal shape and hardness; the image alone does not establish the identification or location.