Hydrolik

Drop a number of maxFynd's Hydrolik hydrogel balls into a jar of water and watch as they rise , but only above gold occurrences. The balls are themselves composed of water and grow from tiny balls no bigger than a tiny seed, up to half an inch round. They can't be seen except as bubbles when they rise just above the surface tension line. A great detector working on the ionic properties of water. It will detect down 50 feet.

 Note: Sample in clip is 0.3 grams

 

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