簡介:"礦物硫化物及硫鹽磁黃鐵礦Pyrrhotite Sulfides and SulfosaltsIt is of hexagonal crystal system, because in the unit cells some places of iron are not filled. The ratio of iron to sulfur is between 0.85 and 1; therefore, the chemical formula of pyrrhotite is Fe1-xS, in which x ranges from 0 to 0.2.Pyrrhotite is highly electricity-conductive and slightly magnetic. Its magnetism is partly due to its components (the more iron the lower magnetism) and partly due to the distribution of empty iron unit cells (the more regular, the higher the magnetism).Apart from extracting iron, pyrrhotite is used to extract sulfur for producing vitriol. The by-product of the process, selenium, is also of significance.主要由鐵和硫所組成,也常含有少量的鎳、銅、鈷和硒(Se)等成份。 屬於六方晶系,因在單位晶格內,有些鐵的位置並未填滿,鐵和硫的比值是介於0.85至1之間,因此,化學式是用Fe1-xS來表示,其中x值是在0-0.2之間。 磁黃鐵礦導電性高,且略具磁性。其磁性除與本身成份有關外(通常含鐵愈多,磁性愈低),還與結構中鐵的空位分布有關,若空位規則分布,磁性較強,反之,則弱。 磁黃鐵礦除可提煉鐵外,所產生的硫可製造硫酸,此外,在冶煉過程中,硒也是一種重要的副產品。"