AM_Nepheline_2
Formula:
Na3 K (Al3.6 Si4.4) O15.999
Name:
Nepheline
Unit cell:
10.003 10.003 8.381 90.0 90.0 120.0 , V=726.25
Space group:
P63 (173)
Simmons W B , Peacor D R , American Mineralogist , 57 (1972) p.1711-1719, Refinement of the crystal structure of a volcanic nepheline