Economy, Mining

All Danish subsurface resources are the property of the nation. Kaolin is found on the island of Bornholm, but the deposits are not of high quality, and it is used chiefly in the manufacture of coarse earthenware and brick. Natural gas and petroleum are recovered from offshore North Sea fields; the output of crude oil was 111 million barrels in 1999. Other minerals produced commercially are limonite, lignite, limestone, chalk, and marl. Large quantities of salt have been discovered in Jutland, where sand reserves are expected to yield titanium, zircon, and yttrium.