脈石礦物 màishíkuàngwù gangue mineral Origin Definitions Defs Strokes Stroke Words Sentences Sents 脉石 脈石 màishí gangue The commercially worthless mineral or rock in which a valuable mineral or metal is embedded; veinstone; matrix矿物 礦物 kuàngwù noun mineral Natural inorganic substances or compounds found in the earth's crust, usually in solid form.