AM_Reppiaite
Formula:
Ni5 As2 O12 H4
Name:
Reppiaite
Unit cell:
9.291 9.008 5.149 90.0 98.7 90.0 , V=425.98
Space group:
C12/M1 (12)
Barbier J , European Journal of Mineralogy , 8 (1996) p.77-84, Crystal structure of Ni5(AsO4)2(OH)4 and its comparison to other, M5(XO4)2(OH)4 compounds