Approximately 50 x 50 x 10 mm off square slab of Queensland Boulder Opal. The stone has been polished all over and has potential to be used or made into many things.
We do not import, promote or sell Synthetic or Man Made Opal, nor any non-Australian mined Opal. On 27 July, 1993, The Australian Government proclaimed Opal as the National Gemstone of Australia!
