The gem was found on a Saturday trip to the park's 37.5-acre diamond searching zone, park officials said in a news release on Wednesday. "At first I thought it was quartz but wondered why it was ...

Earthquakes may cause gold nuggets to form in quartz by generating an electric ... Read more Why supersonic, diamond-spewing ...

The hopes of thousands who rushed to a rural South African village last week in search of diamonds have been crushed, after government officials said Sunday that the stones were only quartz, which ...