bournonite的翻译，读音
释义：
[化] 车轮矿
n. A mineral of a steel-gray to black color and metallic
luster, occurring crystallized, often in twin crystals shaped like
cogwheels (wheel ore), also massive. It is a sulphide of antimony,
lead, and copper.
n. A mineral of a steel-gray to black color and metallic
luster, occurring crystallized, often in twin crystals shaped like
cogwheels (wheel ore), also massive. It is a sulphide of antimony,
lead, and copper.