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naumannite
noun
nau·mann·ite
\ˈnȯməˌnīt, ˈnau̇m-\
Definition of naumannite
-s
: a mineral (Ag2Se) consisting of a silver selenide in iron-black cubic crystals or massive (specific gravity 8)
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Origin and Etymology of naumannite
German naumannit, from Karl F. Naumann †1873 German mineralogist + German -it -ite
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