The estimated value of nonfuel mineral production in Maryland in 2001 was $356 million, a marginal decrease from 2000. Maryland ranked 33rd among the states and accounted for almost 1% of the national nonfuel mineral production value. Crushed stone, cement (portland and masonry), and crushed sand and gravel together accounted for almost 99% of the state's total nonfuel mineral value.
According to preliminary figures, crushed stone (output 24 million metric tons, valued at $139 million) was the leading nonfuel mineral commodity, followed by portland cement (1.7 million metric tons, $123 million) and construction sand and gravel (12.7 million metric tons, $83.5 million). Maryland also produces significant quantities of dimension stone.