AFG - Afghanite

AFGAfghaniteP63/mmc

Secondary Building Unit:single 6-rings (or single 4-rings)
Type Material:Afghanite
(Na2,Ca,K2)12[Al24Si24O96] ~ (Na2,Ca,K2)6(Cl2,SO4,CO3)6.2H2O
Hexagonal, (P63/mmc, P63/mc or P&hibar;62c1, a=12.8, c=21.4 Å