Fluoro-potassic-magnesio-arfvedsonite

Al_0.01Ca_0.19F_1.03Fe_1.73H_0.73K_0.98Mg_3.09Mn_0.04Na_1.81O_22.97Si₈Ti_0.12Zn_0.01

Oberti, R.Boiocchi, M.Hawthorne, F. C.Robinson, P.

Mineralogical Magazine (2010) 74, 951-960

a=9.9591Å   b=17.9529Å   c=5.2867Å

α=90°   β=104.340°   γ=90°