From a January, 1976 find. Imported and offered for sale in at the 1976 Tuscon show by Julius and Miriam Zweibel. ex. Fred Keidel collection (1976-1985) ex. Univeristy of Maryland Mineralogical Museum (1985-1995) (Deaccessed to Cal Graeber) ex. Wally Mann collection (1992-2005) to me via Dr. Robert Lavinsky Mineral enthusiasts will be familiar with the names of The Zweibels, and Cal Graeber. Apparently, Fred Keidel (deceased) was a collector by avocation, who was employed as an egineer by DuPont, and who donated a number of fine minature specimens to the Univerisity for display, as mentioned in this edition of the Univeristy of Delaware Messanger. ----- Photos courtesy of/©2005 The Arkenstone.