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Rock guide

Almandine Garnet

gem · common

Quick facts

Formula
Fe3Al2(SiO4)3
Hardness
7.0–7.5
Luster
Vitreous
Colors
Deep red, brownish-red

Almandine is the most common garnet and is often used in jewelry. It is known for its deep red color and is sometimes mistaken for ruby.

Deep red color with a vitreous luster, often found in metamorphic rocks.

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