Gemini Gold table I used at school to separate the heavy minerals(zircon and appatite) from the lightg minerals. There are 7 tubes attached to holes in the tray that separate minerals based on their specific gravity. The heavy minerals go into the center tube. It is essentially a gold sluice. No gold this trip though. 
I wish the rock samples were taken from gold country.
I wish the rock samples were taken from gold country.