We're after pure gold, but rock that contains gold also includes lots of other materials such as quartz, calcite ... We used mercury to actually extract the gold from the powdered rock.
Scientists have uncovered the truth behind the incredible process that can turn quartz into huge gold nuggets. Gold and precious metals have long fascinated human beings, particularly when they ...
Experts believe the pressure and electric field drives the process of gold forming. In experiments conducted by experts at Monash University in Melbourne, they found that seismic waves from ...