How does moisture in the soil affect the performance of my metal detector?
Most metal detectors can be fooled by large rusty items. When the soil is moist, the corrosion is worse and makes the item look larger. This is especially true of circular items like bottle caps and washers. Metals like iron and steel easily corrode in damp soil, but gold does not. Silver corrodes much less than copper, brass or bronze. Large pieces of iron sound different and experienced users don’t dig up large pieces of iron very often.
