The geochemistry of agate and chalcedony in volcanic rocks represents an intricate record of silica precipitation and crystallisation processes occurring under variable thermal and chemical ...

The Bible makes many references to jewels and precious stones. This is not so surprising, since in every civilisation gemstones have been highly prized and sought after. There are many gemstones and ...

The technical content of this news release has been reviewed and approved by Triumph Gold's Principal Geologist Marty Henning ...