Minelab Gold Monster 1000 Gold Detector with High Gold Sensitivity 2 COILS 4x4 gear aluminum oxide)Used to prepare stones

aluminum oxide)Used to prepare stones for final polishing

What a 3 Stack Deluxe come with:

That tells you the gold is staying put in the upper 3rd of the mat and not migrating down and possibly out of the sluice

I like how the holes at the upper end of the mat fill with nothing but black sand while the holes at the other end fill with lighter material

Minelab Gold Monster 1000 Gold Detector with High Gold Sensitivity 2 COILS 4x4 gear aluminum oxide)Used to prepare stonesThe MINELAB Gold Monster 1000 metal detector turns beginners into experts with fully automatic operation in an easy to use, high performance detector. 45 KHZ VLF & 24 BIT Signal Processor: This Primary combination greatly boots sensitivity to gold beyond that of other single frequency VLF Detectors over a wide range of nugget sizes, without introducing excess noise an false signals. Easy to Use Controls: Gold Chance Indicator, Detect Modes: Gold (Iron