 Romania has considerable natural resources for a country of its size, including coal, iron ore, copper, chromium, uranium, antimony, mercury, gold, barite, borate, celestine (strontium), emery, feldspar, limestone, magnesite, marble, perlite, pumice, pyrites (sulfur), clay, arable land and hydropower.Romania's mineral production is adequate to supply its manufacturing output.Energy needs are also met by importing bituminous and anthracite coal and crude petroleum.