The Rare Earths of Texas (Barringer Hill)
Coppedge, C., 2010, All That Glitters is Sometimes Yttrium.
Footnotes in Texas History, November 2010
http://www.texascooppower.com/texas-stories/history/all-that-glitters-is-sometimes-yttrium
Nielsen, D., 2008, The Story of Barringer's Hill. GunBroker.com
http://forums.gunbroker.com/topic.asp?TOPIC_ID=319896
Landes, 1932, The Baringer Hill, Texas, Pegmatite. American
Mineralogist. vol. 17, pp. 381-390.
http://www.minsocam.org/msa/collectors_corner/arc/barringertx.htm
Zelade , R., Baringer Hill beneath Lake Buchanan. Hill Country.
http://www.texasescapes.com/FEATURES/Richard_Zelade_Hill_Country/Barringer_Hill_Lake_Buchanan.htm
Yours,
Paul H.