[wol.fram.ite] n [G Wolframit, fr. Wolfram] (ca. 1868): a mineral that consists of a tungstate of iron and manganese usu. of a brownish or grayish black color and slightly metallic luster, occurs in monoclinic crystals and in granular or columnar masses, and is used as a source of tungsten
WOLFRAMITE
Meaning of WOLFRAMITE in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012