Boulder Opal from Central Queensland.
Seams of opal running across the face of a piece of ironstone.
The piece has been semi cut down so it only needs a little work.
The pieces are wet to bring out their colours.
The Ruler is measured in millimetres.
Measurements are generally rounded down and approximate.
Colour: Please note the camera has been white-balanced to give truer colours NO Photo Shopped enhancement.