Reno Chris Posted December 11, 2014 Report Share Posted December 11, 2014 The SDC is finding a great niche in detecting a lot of small gold, but the truth is that it can also be used to find some larger types of specimen gold as well. The SDC also has an advantage over other detectors with specimen material, because the response of wiry, porous gold is much like that of small gold even when the overall amount of gold is fairly large. Metal detectors work by seeing the eddy currents created by a magnetic field coming out of the detector’s coil. The eddy currents which are created in porous, mossy or wiry pieces of gold decay and disappear much more quickly than those which are created in solid pieces of gold of the same weight. This type of specimen gold behaves much more like a very small nugget even though the amount of gold contained within the specimen is good sized. Its like comparing the detector response on a fine jewelry chain and a solid gold ring.The new MPF technology found in the SDC 2300 allows it to begin searching for eddy currents much more quickly than previous pulse induction detectors. This accounts for its ability to find smaller gold, but also allows the SDC 2300 to be very hot on specimen gold, and that is why I am making this post. If you want to find larger pieces of gold with your SDC 2300 that have been missed by others or could not have been detected with previous detectors, you need to be looking in places where specimen gold abounds or the gold is of the mossy, prickly, porous or wiry variety. So the next time you are thinking about where to prospect with your SDC 2300, remember that if you choose places rich in specimen gold you may be finding some very nice specimens with your detector.These nuggets were all iron stained ugly specimens a few weeks back but spent a lot of time soaking in acid. The larger nugget I found a few weeks back - plus a few more found a couple weeks before that. The small one below the bigger one is from California, the others are from Nevada. Biggest piece is 0.57 ounces, total is 0.9 ounces. Quote Link to comment Share on other sites More sharing options...
LuckyLundy Posted December 11, 2014 Report Share Posted December 11, 2014 Chris,Great shooting! WTG, seems the 2300 is treating you very well.LuckyLundy Quote Link to comment Share on other sites More sharing options...
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