• WordNet 3.6
    • n wulfenite a yellow to orange or brown mineral used as a molybdenum ore
    • ***
Webster's Revised Unabridged Dictionary
    • n Wulfenite (Min) Native lead molybdate occurring in tetragonal crystals, usually tabular, and of a bright orange-yellow to red, gray, or brown color; -- also called yellow lead ore.
    • ***
Century Dictionary and Cyclopedia
    • n wulfenite Native lead molybdate, a mineral of a bright-yellow to orange, red, green, or brown color and resinous to adamantine luster. It occurs in tetragonal crystals, often in very thin tabular form, also granular massive. Also called yellow lead ore.
    • ***


Webster's Revised Unabridged Dictionary
So named after F. X. Wulfen, an Australian mineralogist


In literature:

The chief ore minerals are molybdenite (molybdenum sulphide) and wulfenite (lead molybdate).
"The Economic Aspect of Geology" by C. K. Leith
Examples are wulfenite (PbMoO4) and barium antimonyl dextro-tartrate (Ba(SbO)2(C4H4O6).H2O).
"Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 7" by Various