MINE YIELD is a term used to describe the amount of resources that can be extracted from a mine. The crossword solutions for this term are SALT (4 letters), ORE (3 letters), ORES (4 letters), and IRONORE (7 letters). SALT is a mineral composed primarily of sodium chloride, which is often mined in large underground deposits. ORE is a rock or mineral from which a valuable metal or other material can be extracted. Ores are rocks or minerals from which a valuable metal or other material can be extracted. Iron ORE is a type of ORE that contains iron and is often mined for use in steel production.