【摘要】 在对宽甸砖庙硼矿床的研究中发现了电气石与遂安石共生的现象,电气石为钙镁电气石,由电子探针分析结果计算的晶体化学式为:(Ca_0.59Na_0.355K_0.06)(Mg_2.557Fe_0.151²⁺Ti_0.013Cr_0.002Ni_0.006)(Al_5.416Fe_0.564^2-（BO₃）₃Si 6.16 O₁₆（OH）₄,同围岩中的电气石相比:（1）淡绿色,多色性弱;（2）折射率为N_e=1.646,N_s=1.624;（3）成分上富Mg（MgO 11.47％）和Ca（CaO3.14％）;相对贫Na（Na₂O 1.09％）,Fe（FeO4.63％）和Al（Al₂O₃26.69％）（4）结构上d₁₀₁=3.393A,a₀=15.957±0.002,c₀=7.227±0.001;（5）红外光谱晶格Si-O₄四面体振动I₁₀₀₁>I₁₀₃₆。这些标型特征具有硼矿床的找矿指示意义。更多还原

【Abstract】 We discovered the coexisting phenomenon of tourmaline with suanite in studing boratedeposits in Kuandian, Liaoning Province. This tourmaline is Uvite. On the basis of the re-sults of electric probe analysis. the calculated crystal chemistry formula is: （Ca0. 59 Na0. 355K0.05）1.005（Mg2. 887, Fe₀.151²-Ti0.013Cr0.002Ni0.006）3.069（Al5.416Fe₀.584²-）6.00（BO3）3Si6.16O18（OH）4.As compared with tourmalines in the surrounding rocks, it shows: （1） in colour, pale-green. weak pleochroism: （2） refractive index: No= 1. 646, Ne= 1. 642; （3 ） in chemicalcomposition: rich Mg and Ca. poor-Na. Fe and Al; （4） d101 = 3. 393A°. a0 = 15. 957 =0. 002, c0= 7. 227 ±0. 001; （5） on infrared spectrum: Si-O4 lattice vibration intensity is:I1081>I1036. These typomophic features are of indicators significance in prospecting boratedeposits.更多还原