Fe₃Al₂(SiO₄)₃

A silicate containing iron and aluminum, almandine has the composition Fe₃Al₂(SiO₄)₃. This sample of almandine originated in Southbury, Connecticut. The sample is 2-3cm across.

These samples are on display at the Smithsonian Museum of Natural History.

Mindat: Almandine

The sample at left is about 3x6 cm and is from Cross Hill, Nuevo, California. The sample below is about 4x4 cm and is from Laos.

This is a sample of almandine-bearing schist from Fort Wrengell, Alaska. It is about 25 x 30 cm.

This is a sample of muscovite with an embedded almandine garnet. The sample is about 7 x 10 cm. It is from Deer Park mine, Penland, North Carolina.

This sample is described as almandine with microcline and quartz. It is about 6 cm wide and is from Topsham, Maine.

This sample is described as almandine with muscovite and microcline. It is about 10 cm wide and is from Spruce Pine, North Carolina.

This almandine sample is about 8x10 cm and is from the Stikine River, Alaska.

This 40.6 carat almandine gem is from Madagascar.

This sample is described as almandine with staurolite. It is about 7 cm wide and is from Roxbury Falls, Connecticut.