Jeffersonite
JEF'FERSONITE, noun A mineral occurring in crystalline masses, of a dark olive green color passing into brown, found imbedded in Franklinite and garnet, in New Jersey.
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JEF'FERSONITE, noun A mineral occurring in crystalline masses, of a dark olive green color passing into brown, found imbedded in Franklinite and garnet, in New Jersey.