High frequencies – above 15 kHz – are widely used to search for gold nuggets, small gold grains, and small jewelry. The truth is that low frequency metal detectors are good at finding objects with excellent conductivity. But gold does not have such properties. On the mineral discrimination scale, gold products have standards similar to oxidized iron. In this regard, it is worth choosing a metal detector with a wide range of sensitivity to ferrous metals.
The metal detector can also detect rings, earrings, and gold chains at medium frequencies. Devices designed specifically for gold detection are suitable for this. The software arsenal for these models usually includes a separate “golden” search mode.
DIFFERENT FREQUENCY TEST ON DEPTH AND GOLD
Chemicals in soil corrode metals, causing them to oxidize. The rust is partially absorbed by the surrounding soil, and the soil becomes more conductive. As a result, some metal objects appear larger than they actually are. Rusty objects are easy to detect at medium and large search depths. A similar trick cannot be performed with gold and silver, as these metals are almost impossible to oxidize.
When searching with a metal detector, most artifacts are found at a depth of 25-30 cm, and there is no particular benefit in chasing larger numbers unless the detector is supposed to be used for specific tasks such as searching for sewer pipes at a great depth. the deeps. After all, the deeper the signal, the greater the probability of errors and errors, in addition, you will have to drill deep holes.
Aluminum 31900
Beryllium 32700
Vanadium 32800
Titanium 35300
Thallium 36600
Palladium 37700
Lead 38000
Chromium VI 39200
Silver 43300
Mercury 43700
Magnesium 45300
Gallium 45400
Manganese 45700
Tungsten 47500
Lithium 47900
Indium 48300
Tantalum 48900
Rubidium 49200
Molybdenum 49800
Nickel 55200
Zinc 56200
Cobalt 56300
Iridium 57000
Cadmium 57300
Copper 58600
Gold 59000
Osmium 59200
Platinum 59300
Tin 59700
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