The value of nonfuel mineral production in Kansas was estimated at $640 million in 2001, up about 2% from 2000. Grade-A helium, portland cement, salt, and crushed stone were the leading nonfuel mineral commodities, accounting for 26%, 23%, 19%, and 17%, respectively, of the total nonfuel mineral production value in 2001. Kansas continued to rank 1st of 2 states producing crude helium (45 million cu m, valued at $48.7 million). The state also ranked 1st of 4 states producing grade-A helium (85 million cu m, valued at $169 million) and5th in salt production (3.1 million metric tons, $121 million). Production of portland cement was 1.8 million metric tons, valued at $144 million, and crushed stone was 21.4 million metric tons, valued at $107 million.