No other methods of prospecting can inspire you so much. Just imagine in hot sunny day to be in clear river or sea diving for gold or diamonds.
Dredging with portable silent electric dredge even more pleasant hobby. Diamond, Gold dredging and underwater treasure hunting are amazing outdoor activity. This also improves finest gold recovery due to fact 80% of concentrate is magnetic and will be removed from riffles. more have specific gravity about 4.9-5.2g/cm3, which pushes out valuable gemstones( SG of ruby and saphires-4.0g/cm3, SG of diamonds- 3.5 g/cm3) In all our dredges and sluices we use now NbFeB Permannent Strong magnetic field( B=1.5 Tesla) Which removes all magnetic minerals. Ordinary riffles accumulate heavy black sand, most of content magnetic minerals.
Now our dredges can be used for gemstones.
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