Best Of Gold Detecting Machines. 17 Best Metal Detectors in 2018 Metal Detector This indepth buying guide cuts through all the BS and helps you choose the best metal detector for salt water beaches and gold country.
Eureka! Xrays detect gold faster and more accurately
Australia’s Commonwealth Scientific and Industrial Research Organisation CSIRO) and Canadian company Mevex have tested a new scanning technique using powerful Xrays that can detect small trace amounts of gold within mineral samples quickly and