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本文首次报道内蒙古多伦县的白石头沟口和二等泉两个矿区的沸石岩特征。研究区沸石岩的矿物组合为斜发沸石、蒙脱石、长石、鳞石英、石英和少量的丝光沸石。沸石岩化学成分比较稳定，两个矿区沸石岩的ＳｉＯ２／Ａｌ２Ｏ３比值均在５．６左右，属高硅型沸石岩；白石头沟口沸石岩ｗ（Ｋ２Ｏ）＞ｗ（ＣａＯ）＞ｗ（Ｎａ２Ｏ）；二等泉沸石岩ｗ（ＣａＯ）＞ｗ（Ｋ２Ｏ）＞ｗ（Ｎａ２Ｏ），属钙－钾型或钾－钙型沸石岩。沸石岩平均吸铵量约为９４×１０－２ｍｍｏｌ／ｇ，阳离子选择交换性能表现为Ｋ＋＞Ｎａ＋，Ｃａ２＋＞Ｍｇ２＋。多数沸石岩的热稳定性可稳定至７００℃不破坏结构。酸碱度平均值为７．３４～７．７５。
This paper reports for the first time the characteristics of zeolite rocks in two mines in Baishutou Mizoguchi and Erquanquan in Duolun County, Inner Mongolia. The mineral assemblages of the zeolite rocks in the study area are clinoptilolite, montmorillonite, feldspar, tridymite, quartz and minor amounts of mordenite. The chemical compositions of zeolite rocks are relatively stable. The SiO2 / Al2O3 ratios of zeolite rocks in both mining areas are both about 5.6, which are high-silica type zeolites; K2O> w (CaO)> w (Na2O ); Second-class spring Zeolite w (CaO)> w (K2O)> w (Na2O), is calcium - potassium or potassium - calcium type zeolite. The average ammonium uptake by zeolite was about 94 × 10-2mmol / g, and the cation exchange performance was K +> Na +, Ca2 +> Mg2 +. The thermal stability of most zeolite rocks can be stabilized to 700 ° C without damaging the structure. The average pH value of 7.34 ~ 7.75.