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硅钾铅铀矿呈淡黄白色,玻璃光泽。针状晶体。可能为二轴晶负光性,N_p=1.570±0.002,N_g=1.584±0.002,N_m明显地接近于N_g。N_p平行于垂直扁平面的方向,N_g趋向于延长方向。具微弱的异常干涉色。斜方晶系。空间群可能为P22_1 2_1,Pmmb,pmcb;晶胞参数为a_0=11.60,b_0=14.68,c_0=12.83(?);Z=6;D_x=3.25。X射线粉末谱强线为11.58(9)(100),7.30(10)(020),6.19(9)(120),3.50(8)
Silica potassium lead uranium was pale yellow and white, shiny glass. Acicular crystals. May be negative for the biaxial grain, N_p = 1.570 ± 0.002, N_g = 1.584 ± 0.002, and N_m is clearly close to N_g. N_p parallel to the direction of the vertical plane, N_g tends to extend the direction. With weak abnormal interference color. Orthorhombic system. The space group may be P22_1 2_1, Pmmb, pmcb. The unit cell parameters are a_0 = 11.60, b_0 = 14.68, c_0 = 12.83 (?); Z = 6; D_x = 3.25. The X-ray powder spectra were 11.58 (9) (100), 7.30 (10) (020), 6.19 (9) (120), 3.50 (8)