AM_Feldspar_2
Formula:
(Si2.82 Al1.18) (K.59 Na.22 Ba.19) O8
Name:
Feldspar
Unit cell:
8.516 13.023 7.206 90.0 115.9 90.0 , V=718.90
Space group:
C12/M1 (12)
Viswanathan K , Brandt K , American Mineralogist , 65 (1980) p.472-476, The crystal structure of ternary (Ba,K,Na)-feldspar and its significance