Hypertext Webster Gateway: "wolframite"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Wolframite \Wol"fram*ite\, n. [G., wolframit, wolfram; wolf wolf
+ rahm cream, soot; cf. G. wolfsruss wolfram, lit., wolf's
soot.] (Min.)
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}.
From WordNet (r) 1.7 (wn)
wolframite
n : a mineral consisting of iron-manganese tungstate in
crystalline form; the principal ore of tungsten; found in
quartz veins associated with granitic rocks [syn: {iron
manganese tungsten}]
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