AB6C3_oI20_71_a_in_cj & a,b/a,c/a,z3,z4,x5,y5 --params=5.6333,0.99893490494,1.41336339268,0.2192,0.2485,0.2335,0.2166 & Immm D_{2h}^{25} #71 (acijn) & oI20 & None & AlF6Na3 & Cryolite & H. Yang and S. Ghose and D. M. Hatch, Phys. Chem. Miner. 19, 528-544 (1993) 1.00000000000000 -2.81665000000000 2.81365000000000 3.98095000000000 2.81665000000000 -2.81365000000000 3.98095000000000 2.81665000000000 2.81365000000000 -3.98095000000000 Al F Na 1 6 3 Direct 0.00000000000000 0.00000000000000 0.00000000000000 Al (2a) 0.21920000000000 0.21920000000000 0.00000000000000 F (4i) -0.21920000000000 -0.21920000000000 0.00000000000000 F (4i) 0.21660000000000 0.23350000000000 0.45010000000000 F (8n) -0.21660000000000 -0.23350000000000 -0.45010000000000 F (8n) 0.21660000000000 -0.23350000000000 -0.01690000000000 F (8n) -0.21660000000000 0.23350000000000 0.01690000000000 F (8n) 0.50000000000000 0.50000000000000 0.00000000000000 Na (2c) 0.24850000000000 0.74850000000000 0.50000000000000 Na (4j) -0.24850000000000 0.25150000000000 0.50000000000000 Na (4j)