Hillite ('(sic)' in Russian), ideally Ca-2(Zn,Mg)[PO4](2).2H(2)O, is a new zinc-dominant analogue of collinsite, isostructural with fairfieldite. It occurs in unmetamorphosed sediments. of the Lower Cambrian Parachilna ...
Yakubovich O.V.; Massa W.; Liferovich R.P.; McCammon C.A.(2001)
The crystal structure of baricite, the Mg-dominant analogue of vivianite, (Mg1.70Fe1.30-x2+Fex3+)(PO4)(2)(OH)(x). (8-x)H2O, a 10.085(2), b 13.390(3), c 4.6713(9) Angstrom, beta 104.96(3)degrees, V 609.4(1) Angstrom (3), ...