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Spessartine previously named spessartite, is a nesosilicate, manganese aluminium garnet, Mn3Al2(SiO4)3. The names is a derivative of Spessart in Bavaria. It occurs most often in granite pegmatite and allied rock types and in certain low grade metamorphic phyllites. The major sources for gem quality spessartine are Sri Lanka and Brazil. Other sources include Australia, Burma, India, Israel, Madagascar and the US. Spessartine of a orange-yellow is found in Madagascar (see Mandarin garnet). Violet-red spessartites are found in rhyolites in Colorado and Maine.
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|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Spessartine". A list of authors is available in Wikipedia.|