Karan M.
Chadwick Gemological Institute
of America Carlsbad, California
George R. Rossman Division of Geological
and Planetary Sciences
California Institute of Technology Pasadena, CA
91125-2500, USA
ABSTRACT
Kyanites
from Nani, Loliondo, Tanzania and from Mautia Hill, Tanzania, are described.
Their colors range from yellow-orange to orange.
Kyanite from Mautia Hill, Tanzania, that contains Mn3+
Optical spectrum of darker-orange kyanite from Nani, Lolioindo, Tanzania