Once I started dredging with heated water pumped into my wetsuit, I never went back to not having heat except late in the summer when the water is very warm.

For the prospector, knowing what oxidized hydrothermal alteration looks like in the field is an important exploration tool.

Let’s set up a thought experiment: Suppose you had some material that ran one ounce per ton gold, which is generally considered high grade to fantastic grade depending on the circumstances.

Starting small with quick profitability gives you a lot of financial elbow room plus real-world experience that can be used for final mill design.

At first, I tried to shift things around, but then a hand with a rock would appear, so I would stop trying to adjust my gear and grab the rock to keep things moving.