wulfenite

[wool-fuh-nahyt]
noun
a lead molybdate mineral, PbMoO 4 , occurring usually in tabular crystals, and varying in color from grayish to bright-yellow or red; yellow lead ore.

Origin:
1840–50; named after F. X. von Wulfen (1728–1805), Austrian scientist; see -ite1

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To wulfenite
Collins
World English Dictionary
wulfenite (ˈwʊlfəˌnaɪt)
 
n
a yellow, orange, red, or grey lustrous secondary mineral consisting of lead molybdate in the form of platelike tetragonal crystals. It occurs with lead ores and is a source of molybdenum. Formula: PbMoO4
 
[C19: from German Wulfenit, named after F. X. von Wulfen (1728--1805), Austrian mineralogist]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Encyclopedia Britannica
Encyclopedia

wulfenite

lead molybdate, PbMoO4, a minor source of molybdenum and the second most common molybdenum mineral. It occurs in the oxidized zone of lead and molybdenum deposits. Fine crystals have been found at Pribram, Czech Republic; Yuma County, Ariz., U.S.; and Mapimi, Durango, Mex. Other localities include Germany, Austria, Sardinia, and Australia.

Learn more about wulfenite with a free trial on Britannica.com.

Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
Cite This Source
Example sentences
The subjects are azurite, copper, variscite and wulfenite.
Occurrences of wulfenite are numerous, but none are of economic importance.
Related Words
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature