Gravity separation
Separation by gravity (Gravity concentration, Gravity separation):
Separation by shaking tables
Separation by spiral concentrators
Separation by jiggs
Separation in dense media (Dense Media Separation, DMS)
http://geointek.ucoz.com/index/koncentracionnye_stoly/0-9
http://zaogm.ru/catalog/obogatitelnoe-oborudovanie/stoly-kontsentratsionnye/624-SKO-2
http://zolotodb.ru/articles/technical/11109/?page=all
http://coralina.ru/catalog/index.php?SECTION_ID=1&ELEMENT_ID=268