RE: 13.75 g/t = .50(or 1/2) onz. per ton?
devon --
Most resulte are stated in Metric Grams/tonne in the reports. Some reports convert for you to ( oz / ton ).
The conversion factor used is .0292. So, your 13.75 g/t X .0292 = .4015 oz/ton. Hope this helps?
As Always, Best of Luck
Alchemist7