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Learn about Gemstones Spessartite Color: orangey yellow, orange, red Hardness: 7 Refractive Index: 1.79 – 1.81 Density: 4.14 – 4.20 Chemical Composition: Mn3Al2(SiO4)3 Crystal Structure: isometric Origins: USA, Germany, Brazil, Sri Lanka, Burma, Madagascar, Mozambique, Nigeria. Back

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