Proshchenkoite-(Y)

As_0.04B₃Ca_2.53F₁₄Fe_0.83Mn_0.93Na_1.17Nd_7.53O₃₄P_0.7Pb_0.03Si_6.26Th_0.09Ti_0.02Y_3.72

Raade, G.Grice, J. D.Erambert, M.Kristiansson, P.Witzke, T.

Mineralogical Magazine (2008) 72, 1071-1082

a=10.7527Å   b=10.7527Å   c=27.4002Å

α=90°   β=90°   γ=120°