Gold gravity concentration flowsheets comprise one or more cleaning stages and final stage includes a gemini table. The gravimetric concentrate is usually cleaned in a special shaking table called Gemini, which has a different geometry in relation to the Wilfley or Deister table. The concentrate is collected in the middle of the table and tails are discharged on both sides of the table.
Gemini Table
Flowsheet to Treat Alluvial Gold Ores
Grinding circuit with centrifugal concentrators and one cleaning stage