Silicon, naturally occurring in the form of silica and silicates, is the most important semiconductor for the electronics industry. 在自然界从硅酸盐和二氧化硅形式存在的硅是电子工业中最重要的半导体原材料。
The main unwanted impurities in iron ores include silica and silicates, alumina and aluminares, sulfur, phosphorus and arsenic, and moisture. 铁矿石中的主要无用杂质有硅石和硅酸盐，氧化铝和铝酸盐，硫，磷和砷，以及水分。
