Introduction
The greenstones are economically important, hosting many gold, antimony, copper-zinc, iron, asbestos, talc, mercury, magnesite and gemstone deposits. Rocks found in this stratum are arenite, conglomerate, shale, lava, pyroclastic, lutaceous arenite and volcanic rocks. The Barberton Mountain Land is the most-significant gold-producing greenstone belt in South Africa. The main Groups included in this Supergroup are:
Geohydrology
Source: http://www.cushmanfoundation.org