Scientists reveal that earthquakes generate electricity in quartz, explaining how enormous gold nuggets grow in deep rock ...

What these sediments do share with the shocked quartz at crater sites is the presence of amorphous silica — melted glass — in these fractures. And that, the researchers say, is evidence of the ...

Quartz-linked gold has sourced some famous deposits, such as the placer gold that sparked the 19th-century California and Klondike gold rushes. Both deposits had eroded from quartz veins upstream.