新疆奇台和吉木萨尔蒙脱石的矿物学研究

A Study on Mineralogy of Montmorillonite From Qitai and Jimusaer Xin jiang

对新疆奇台县西黑山和吉木萨尔县帐蓬沟两矿床的膨润土进行了矿物成分和化学成分的测定,计算了蒙脱石的晶体化学式、阳离子交换容量。对两矿床的膨润土进行了属性和属型的划分,结果表明两矿床的膨润土都属钠基膨润土,其中西黑山矿床膨润土中的蒙脱石类型是切脱型,而帐蓬沟矿床膨润土中的蒙脱石类型是怀俄明型。

The chemical compositions and mineral compositions of Xinjiang QiTai Xiheishan and Jimusaer Zhangpenggou aredetermined. The crystal chemical formula, cation exchange capacity and layer charge are calculated. The attribute and type of bentoniteare fingered out. The result shows that they are both Na-bentonite, but the type of montmorillonite from Xiheishan is Cheto-typemontmorillonite, the Zhangpenggou's is Wyoming-type montmorillonite. Layer charge is calculated by two methods and the result isvery close.