AM_Pararobertsite
Formula: Mn3 Ca2 P3 O17 H6
Name: Pararobertsite
Unit cell: 8.814 13.233 11.056 90.0 101.184 90.0 , V=1265.03
Space group: P121/C1 (14)

Kampf A R , American Mineralogist , 85 (2000) p.1302-1306, The crystal structure of pararobertsite and its relationship to mitridatite