Read Edit View history 慈石 císhí magnetite Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 慈石 · císhí · magnetite 2026/03/04 慈石 císhí magnetite magnetite Fe3O4 这种矿石在古代被称为慈石。 created sense Mar 4, 2026, 02:25 AM