Powder X-ray diffraction data for innelite

X-ray powder data originally published for innelite-Na2Ba3(Ba, K, Mn)(Ca, N a)Ti(TiO2)(2)[Si2O7](2)(SO4)(2)-were erroneously those of catapleiite. The new data reported here are compared with powder data calculated from the pu blished structure. The cell is triclinic (space group P1, Z=1), a=14.71(1) Angstrom, b=7.115(7) Angstrom. c=5.379(4) Angstrom, alpha =90.02(7)degrees, beta=94.68(8)degrees, gamma=98.43(9)degrees, V=555.0(6) Angstrom(3), F-30= 5.2(0.053,109). (C) 2000 International Centre for Diffraction Data. [S0885- 7156(99)00903-3].