Johnkoivuilaite: A new
gem mineral
Palke1 AC, Sun A1, Renfro N1,
Henling LM2, Ma C2, Rossman GR2,
Thu K3, Myo N4,
Wongrawange P5, Weeramonkhonlert V5
1Gemological Institute
of America
Carlsbad, CA 92024 USA
2California
Institute of
Technology
Pasadena, CA 91125-2500, USA
3Macle Gem Trade Laboratory, Yangon, Myanmar
4GreatlandGemsandJewelry, Mogok
5Gemological Institute of America, Bangkok, Thailand
ABSTRACT
A new mineral of the beryl group was characterized. The formula is Cs(Be2B)Mg2Si6
O18. It was obtained from the Pein Pit mining area of Mogok, Myanman. It currently exists as a single specimen.