“硫化物”的英语？

硫化物集体大部由磁黄铁矿 、 镍黄铁矿 、 黄铜矿及黄铁矿组成.The sulfide assemlage consists largely of pyrrhotite, pentlandite, chalcopyrite, and pyrite.块状硫化物中含有矿化的和未矿化的辉长岩及片岩碎块.The massive sulfide contains fragments of barren and mineralized gabbro...