【摘要】 采用薄片观察、电子探针分析、X射线粉晶衍射分析等方法对2种易水砚石的矿物学、岩石学特征进行了研究。结果显示,易水砚的两个品种紫翠石和玉黛石均属碎屑岩,其中玉黛石主要的碎屑组成矿物有石英、长石、赤铁矿、沸石,胶结物为泥质矿物伊利石,可占玉黛石的30%~40%;紫翠石主要的碎屑组成矿物有石英、长石、赤铁矿、方解石、沸石,胶结物为泥质矿物伊利石、蒙脱石、绿泥石、高岭石和蛭石,可占紫翠石的30%~50%。更多还原

【Abstract】 Petrologic and mineralogical characteristics of Yishui inkstones from Hebei Province were studied by using petrographic observation,electron microprobe analysis and X-ray powder diffraction.Yishui inkstones belong to clastic rocks.There are two species of Yishui inkstones,i.e.,Yudai inkstone and Zicui inkstone.The main particles of Yudai inkstone consist of quartz,feldspar,hematite,and zeolite,whereas the cement consists of clay mineral illite,which accounts for 30~40 percent of the total content.The main particles of Zicui inkstone are composed of quartz,feldspar,hematite,zeolite and calcite,whereas the cement consists of clay minerals,such as illite,montmorillonite,chlorite,vermiculite and kaolinite.Clay minerals account for 30~50 percent of the total minerals.更多还原