wulfenite


Also found in: Thesaurus, Encyclopedia, Wikipedia.

wul·fen·ite

 (wo͝ol′fə-nīt′)
n.
A usually yellow to orange-brown mineral, PbMoO4, used as a molybdenum ore.

[German Wulfenit, after Franz Xavier von Wulfen (1728-1805), Austrian mineralogist.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

wulfenite

(ˈwʊlfəˌnaɪt)
n
(Minerals) 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 and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

wul•fen•ite

(ˈwʊl fəˌnaɪt)

n.
a yellow to red, usu. crystalline mineral, lead molybdate, PbMoO4, an ore of molybdenum.
[1840–50; after French. X. von Wulfen (1728–1805), Austrian scientist; see -ite1]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.wulfenite - a yellow to orange or brown mineral used as a molybdenum orewulfenite - a yellow to orange or brown mineral used as a molybdenum ore
mineral - solid homogeneous inorganic substances occurring in nature having a definite chemical composition
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Mentioned in ?
References in periodicals archive ?
[Use the interactive data tool created by AZCIR to discover the alike votes between each senatorHERE.] Farnsworth was the only representative to vote against a bill to make wulfenite Arizonas official state mineral.
Over the next seven years Montgomery and Over were responsible for many spectacular mineral discoveries reaching the market, including red wulfenite from the Red Cloud mine in Arizona, and epidote from the Green Monster mine on Prince of Wales Island in Alaska.
He did learn, however, many years later, that the mineral in the cave that he showed to Sylvia was wulfenite, an oxide of lead, named for the eighteenth-century Austrian Jesuit, Franz Xaver Freiherr von Wulfen, also memorialized in the purple-flowering evergreen Wulfenia carinthiaca, found, it is said, only on two mountains in the Carinthian Alps.
These analyses indicate that the Fe-As-O coating is amorphous, the Cu-S-rich phase is crystalline and the patterns are consistent with chalcocite ([Cu.sub.2]S) and/ or djurleite ([Cu.sub.31][S.sub.16]), the Pb-Mo-O-rich phase is crystalline and the patterns are consistent with wulfenite (PbMo[O.sub.4]), and the Bi-Pb-As-O-rich phase is crystalline but the diffraction patterns could not be indexed conclusively.
Specifically, there were 17 (mostly oil) paintings of wulfenite, silver sulfosalts, tanzanite, mining scenes and other subjects by Wendell Wilson; there were 18 glowing acrylic paintings of specimens by Susan Robinson; there were 16 examples of Eberhard Equit's fantastically finely detailed watercolors of (mostly German) mineral specimens in their natural sizes; and there were 21 exquisite watercolor paintings, also natural size, by Hildegard Konighofer of Graz, Austria (who has, by the way, just published a new book of her mineral art).
These include arsentsumebite, tsumebite, corkite, fornacite, duftite, caledonite, kettnerite, linarite, leadhillite, brochantite, mimetite, pyromorphite, vanadinite and wulfenite.
Kevin Downey's dealership called Well Arranged Molecules (www.wellarrangedmolecules.com) was offering red wulfenite in thumbnail, miniature and small cabinet-sizes from a locality he gave as "Tuokexun, Tulufan Prefecture, Xinjiang, Uygur Region, China"--almost certainly these specimens are from the remote mine in the Kuruktag Mountains of Xinjiang Uygur Autonomous Region, as described by Wilson and Origlieri in January-February 2007.
An upper level of the old workings has lately been producing fluorite, in transparent deep purple crystals, with wulfenite, barite and calcite.
Goodchild, of the Scottish Geological Survey, found wulfenite there in 1875 but the locality only really became of interest to collectors in the 1950s following the reporting of a suite of rare supergene minerals including bayldonite, duftite, beudantite, carminite, lindgrenite and stolzite (the first authenticated British occurrence).
Wulfenite Los Lamentos, Chihuahua, Mexico 2 1/4" tall ex-collection M.
Their first ad that month in Rocks & Minerals advertised Los Lamentos wulfenite (square tabular and prismatic) at 45cents per square inch of crystal-covered matrix, and diaboleite at 50cents per square inch, up to 16 square inches (for $8).
Within the past five years the abandoned workings of the old Mobile mine in the Goodsprings district, Clark County, have yielded small, fairly nice wulfenite specimens, and about 25 small miniature-size examples were on hand in the Holiday Inn room of Great Basin Minerals (www.greatbasinminerals.com).