Directory of Gems - Gem Dictionary - reference guide to Andradite
Andradite was named after the Brazilian mineralogist José Bonifácio de Andrade e Silva (1763-1838). Andradite is a species of the garnet group. Andradite includes 3 varieties:
Melanite: Black in color, usually not cut as a gemstone.
Demantoid: Vivid green in color, one of the most valuable and rare stones in the gemological world.
Topazolite: Yellow-green in color and sometimes of high enough quality to be cut into a faceted gemstone.
Andradite also is found rarely, colorless.
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