(PDF) Winter testing of placer gold with a 3-inch KNELSON TM
The KNELSON TM results support an upward revision of reserves. The KNELSON TM results also proved economic gold concentrations in 2 of 4 samples taken from the tailings of the Russian-style gold washing plants (0.756g/m 3 and 1.974g/m 3 ) where gold losses seem to have been substantial.