Cell Dimensions of Boltwoodite.

Abstract

Cell dimensions of boltwoodite, K(H₃0)(UO₂)(Si0₄)•O-1H₂O, have been determined using electron and X-ray powder diffraction data: a 13.71(1), b 7.14(1), c 12.35(2)Å, β 102.1(1)°, V 1187(3)A³. Z=6. G_meas.=3.6, G_calc.=3.52(0H₂O)-3.68(1H₂O). The newly indexed X-ray powder data for sklodowskite and kasolite are given.