A significant part of the primary gold reserves in world is contained sulphide ores, many types which are refractory processing. The deposits ores will be main potential source production future. and silver can associated with micro- nano-sized inclusions Au Ag minerals as well isomorphous, adsorbed other species noble metals (NM) not thoroughly investigated. For gold-bearing Urals, distributio...

Tydskrif vir Letterkunde is an online, peer-reviewed, accredited scholarly journal which publishes original, previously unpublished research and overview articles on theoretical, applied or comparative aspects of African literatures cultural practices.