WOLFRAMITES

Noun

wolframites

plural of wolframite

Source: Wiktionary

WOLFRAMITE

Wol"fram*ite, n. Etym: [G., wolframit, wolfram; wolf wolf + rahm cream, soot; cf. G. wolfsruss wolfram, lit., wolf's soot.] (Min.)

Definition: Tungstate of iron and manganese, generally of a brownish or grayish black color, submetallic luster, and high specific gravity. It occurs in cleavable masses, and also crystallized. Called also wolfram.

Source: Webster’s Unabridged Dictionary 1913 Edition