#38
Amm2
Example – Shortite, Ca2Na2(CO3)3
Named for Maxwell Naylor Short (1889-1952), professor of mineralogy, University of Arizona.
Crystal structure of Ca2Na2(CO3)3
Dickens, B.; Hyman, A.; Brown, W.E.
Journal of Research of the National Bureau of Standards, Section A. Physics and Chemistry (1971) 75, p129-p135
http://www.webmineral.com/data/Shortite.shtml