AM_Ferro-axinite Formula: Ca2 Fe.657 Mn.13 Mg.185 Ti.005 K.022 Na.065 Al1.893 B H Si4 O16 Name: Ferro-axinite Unit cell: 7.1437 9.1898 8.9529 91.857 98.188 77.359 , V=567.66 Space group: P-1 (2)

Swinnea J S , Steinfink H , Rendon-DiazMiron L E , Enciso de la Vega S , American Mineralogist , 66 (1981) p.428-431, The crystal structure of a Mexican axinite