We're after pure gold, but rock that contains gold also includes lots of other materials such as quartz, calcite, and the sulfides of other metals. Since we need to separate the gold from the rest ...

A "supergiant" deposit of high-quality gold ore containing an estimated 1,000 metric tons (1,100 US tons) of the precious ...

NOT MANY GOLD MINES HERE Gold mining is rare in Southern Nevada. The area generally lacks the rock type that contains gold deposits. Restrictions on federal wilderness areas and protections for ...

For many years, David Hole kept the rock he found near Melbourne at home, believing it might contain gold. To his surprise, his discovery turned out to be far more precious. The story, reported by ...

An Australian metal detectorist named David Hole made an extraordinary discovery that intrigued scientists and captivated the public. Years after unearthing an unusual rock, David Hole found with the ...