DLKM | Douglas Lake Minerals Reveal Tests Yield Up To 99.4 Percent Gold Recovery

OTCBB Penny Stock News

Jul 28, 2008 9:00:00 AM

VANCOUVER, July 28 /CNW/ - Harp Sangha, President/CEO of Douglas Lake Minerals (OTC BB: DLKM / Frankfurt: D60.F) is pleased to announce the results from preliminary gravity concentration test work completed on three samples of gold bearing alluvial material from the Company's wholly owned Mbwemkuru Alluvial Gold Project located in the Lindi region in Southeastern Tanzania. The test work was completed by Met-Solve Laboratories of Vancouver, BC.


Test work completed on two samples of field concentrate and one of surface sand with a combined weight of 26.2kg using a Falcon concentrator and a two stage recovery process. The two stage recovery process consisted of running material through the Falcon concentrator and then running the tailings through as the second stage.

The calculated head grades (the g/t grade of the material before processing) of the three samples were 193.1 g/t and 61.8 g/t from the field concentrate and 1.69 g/t of surface sand.

Total gold recovery from the two stage process ranged from 94.7% to 99.4% for the three samples

ICP analysis of the samples indicated strongly anomalous contents of combined Uranium and Thorium with the highest combined U/Th value of 828 ppm associated with the field concentrate that produced a calculated head grade of 61.8 g/t.