AM_Tveitite-(Y)
Formula:
Y3 Ca6.5 F21.5
Name:
Tveitite-(Y)
Unit cell:
16.962 16.962 9.6664 90.0 90.0 120.0 , V=2408.52
Space group:
R11-3 (1)
Bevan D J M , Strahle J , Greis O , Journal of Solid State Chemistry , 44 (1982) p.75-81, The crystal structure of tveitite, an ordered yttrofluorite mineral, Note: a and b adjusted to match reported bond lengths