fergusonite


Also found in: Dictionary, Thesaurus, Wikipedia.

fergusonite

[′fər·gə·sə‚nīt]
(mineralogy)
Y2O3·(Nb,Ta)2O5 Brownish-black rare-earth mineral with a tetragonal crystal form; it is isomorphous with formanite.
References in periodicals archive ?
The NYF Mukinbudin pegmatite field has been known for rare minerals including allanite, euxenite, fergusonite, ilmenorutile, monazite, xenotime and zircon since 2000.
Hidden for identification, and a short time later received a telegram saying "Congratulations; xenotime, fergusonite, cyrtolite, etc."
This good news spurred further searching which turned up large quantities of fluorite, muscovite, magnetite, menaccinite, molybdenite, graphite, columbite, allanite, several more pounds of fergusonite and ultimately over 200 pounds of gadolinite.
Uraninite, in association with ferrotantalite, fergusonite, euxenite, samarskite and monazite, is known from the cluster of pegmatite bodies that includes the Mugeba, Bere, Enluma, Maria, Muacotaia and Namagoa pegmatites (DSGM, 1974).
He was described as "a patron of science, and on all occasions a most liberal contributor to the wants of the society." Thomas Allan (1777-1833) proposed that a newly described mineral recently brought back from Greenland by Karl Gieseke (1761-1833) should be named fergusonite in his honor, and Jameson dedicated his System of Mineralogy of 1820 to "Robert Ferguson of Raith in Testimony of his distinguished talents as a mineralogist by his Faithful and Sincere Friend the Author." James Sowerby's Exotic Mineralogy of 1811-1820 is similarly dedicated: