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Fracture
subconchoidal, usually brittle
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Bulk Density (lbs./ft3)
150.
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Melting Point (°C)
1250 to 1315
A group of iron aluminum silicate homogeneous minerals having similar properties. non-hygroscopic, sharp angular shape, inert, slightly magnetic, not soluble in water, translucent, friable to tough, and contains no free chemicals. All oxides and dioxides are combined chemically as follows: Fe2O3Al2(SiO4)3. The iron and aluminum are partially replaceable by calcium, magnesium and manganese.There are three types- aluminum garnet, iron garnet & chromium garnet.