Formula: Ca3 (Fe1.54 Mn.2 Al.26) Si1.65 O12 H5.4
Name: Andradite
Unit cell: 12.34 12.34 12.34 90.0 90.0 90.0 , V=1879.08
Space group: IA-3D (230)

Armbruster T , European Journal of Mineralogy , 7 (1995) p.1221-1225, Structure refinement of hydrous andradite,, Ca3Fe1.54Mn0.02Al0.26(SiO4)1.65(O4H4)1.35, from the Wessels mine,, Kalahari manganese field, South Africa, Note: reported coordinates of Ca and Y-site made no sense, they have been changed, Locality: Wessels mine, Kalahari manganese field, South Africa