2d6 Result Defined Trade Good Unit Increment Base Price GP
2 Lead/Zinc/Tin 1d6 x10 1
3–5 Copper 1d6 x 10 2.5
6–8 Nickel/Silver 1d6 x 10 5
9–11 Gold/Iridium 1d6 x 57.5
12 Platinum 1d5 x 2 10

These are unrefined ores.