AM_Denningite_3 Formula: Mn1.2 Cu.8 Te4 O10 Name: Denningite Unit cell: 8.729 8.729 12.82 90.0 90.0 90.0 , V=976.83 Space group: P42/NBC (133)

Miletich R , Mineralogy and Petrology , 48 (1993) p.129-145, Copper-substituted manganese-denningites,, Mn(Mn1-xCux)(Te2O5)2(0<=x<=1): synthesis and crystal chemistry, Locality: synthetic, Sample: x = 0.80