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January-Garnet |
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Colour Red Formula Fe3Al2(SiO4)3 Group Silicates Uses Jewellery, abrasives Origins In metamorphic rock Locations Australia, Brazil,Sri Lanka Garnet is a silicate of iron and aluminium and can be opaque or transparent. It derives it's red colour from iron and can be used as an abrasive. It is reasonably hard (7-7.5 on the mohs scale) but can be chipped easily. Some red garnets contain rutile (titanium oxide). These specimens are very valuable.
