硅砂的主要矿物为石英、长石、高岭石、云母等,分别准确测定它们的含量,对于矿床的评价和矿产资源的综合利用,均有重要作用。这些矿物大都属硅铝酸盐,彼此性质极为相近。对它们进行概略测定一般是采用X射线衍射分析。本 Silica sand is the main mineral quartz, feldspar, kaolinite, mica, etc., were accurately determine their content, for the evaluation of the mineral deposits and the comprehensive utilization of mineral resources, have an important role. Most of these minerals are aluminosilicates, very similar to each other in nature. The rough determination of them is generally by X-ray diffraction analysis. this