RE: Development Drive to West Dome Undrground15 Apr 2025 16:05
So 1oz per 20 tons…above my pay grade Fred, but asked AI…
“At Telfer, 20 tonnes (20,000 kg) of ore producing one ounce of gold would imply a gold grade of about 1.55 grams per tonne (g/t), since:
• 1 troy ounce = 31.1 grams
• 31.1 g ÷ 20 tonnes = 1.555 g/t
Telfer typically operates at an average gold grade of around 0.8–1.0 g/t, depending on the year and ore source. So:
• Yes, it’s possible that in higher-grade zones, 20 tonnes of ore could produce one ounce, especially when the grade exceeds 1.5 g/t.
• However, it’s not the norm—on average, it takes much more than 20 tonnes to yield an ounce (more like 66–75 tonnes based on current averages).”