stewartite

noun stew·art·ite \ˈst(y)üə(r)ˌtīt\

Definition of stewartite

plural

-s

  1. :  a mineral consisting of a hydrous phosphate of manganese that is brownish yellow in color, is usually in minute crystals and tufts of fibers, and is found with hureaulite in several pegmatites

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Origin and Etymology of stewartite

Stewart mine, Pala, California, where it was originally found + English -ite


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