AM_Foitite_2
Formula: Fe1.581 Al7.419 Si6 B3 O31 H3.58
Name: Foitite
Unit cell: 15.964 15.964 7.119 90.0 90.0 120.0 , V=1571.21
Space group: R3M (160)

Kahlenberg V , Velickov B , European Journal of Mineralogy , 12 (2000) p.947-953, Structural investigations on a synthetic alkali-free, hydrogen-deficient Fe-tourmaline (foitite)