Even if gold, etc gives off specific frequencies, once they are under the ground it would much harder for that frequency to be of a magnitude that could be useful for any practical device to pickup.
There is no free lunch, gold is not "screaming out" a frequency that can be detected from a long distance.
A question, has there ever been any electronic instrument constructed to do such a feat?
If so, how far distance can it pick it up?
What are the chances any current LRL would do the same thing?
Honest answers to these questions need to be entertained, right?
Some are making electronic LRL's to detect with, they use BFO's as the main part of their construction which also brings up a question to be asked, namely why can't a standard BFO detector with a large coil do the same thing?
One would think the large brand detector makers, such as Whites, which spends big money on making detectors would already know about specific frequencies of metals.
Then they would market such detectors so they could make more money....
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