Earth ChangesVolcanic gold discovered in Hawaii may have come directly from Earth’s core Posted on July 1, 2025 by Administrator Hidden beneath the thick crust and scorching layers deep inside our Earth lies an immense stash of precious metals. Scientists have long believed these riches, which include gold and ruthenium, remain stuck near the core-mantle boundary, a zone that is about 1,900 miles (3,000 kilometers) underground.