柯林斯詞典siderite /?sa?d??ra?t/ 1. N a pale yellow to brownish-black mineral consisting chiefly of iron carbonate in hexagonal crystalline form. It occurs mainly in ore veins and sedimentary rocks and is an important source of iron. Formula: FeCO3 菱鉄鑛 (Also called chalybite) 返回 siderite