Argyle mine Tag

[caption id="attachment_23668" align="alignleft" width="550"] Image: Rio Tinto Flikr[/caption] Western Australia’s iconic Argyle mine has produced one of the largest gem-quality white diamonds in its 35-year history, after Rio Tinto uncovered a 28.83 carat stone in March. The diamond has been named Argyle Octavia for its unusual octahedral...