Barytes dictionary definition

Among the other minerals found and mined to a limited extent are lead, manganese, barytes, fluorspar, slate, granite and petroleum.
Among the less important Spanish minerals are manganese (chiefly in Ciudad Real), antimony, gold, cobalt, sodic sulphate, sulphate of barium (barytes), phosphorite (found in Chceres), alum, sulphur, kaolin, lignite, asphalt, besides a variety of building and ornamental stones.
The normal sulphates are the more important, and occur widely and abundantly distributed in the mineral kingdom; anhydrite, gypsum, anglesite, barytes, celestite and kieserite are among the commonest species.
Copper, gold alloyed with platinum, iron ore, barytes, graphite and lead occur in small quantities in the state.
Other minerals, which are not found in commercial quantities, are lead in the form of galena, in Sussex county; graphite, in the crystalline schistose rocks of the Highlands; molybdenum, in the form of a sulphide, in Sussex county; and barytes in Mercer and Sussex counties.

How would you define barytes? Add your definition here.