Mineralogical Miracles at Merelani, Tanzania

John A. Jaszczak Department of Physics and the A. E. Seaman Mineral Museum Michigan Technological University  December 5,  2014, 3:00pm Chemical Science Building, Room 101 Abstract: The Lelatema Mountains in northern Tanzania are host to one of the world’s richest flake graphite deposits, but it is the purple-blue gem variety of zoisite called “tanzanite” that . . .