Australia and small amounts till reach the market today, but there have been no major finds in many years. It shows the desired play of color, but only when light is transmitted through the stone. It appears to be clear when viewed from the same side. It is thus very difficult to design jewelry using this variety and it finds its way mainly into collections. Opal Doublets and Opal Triplets - these are sandwiched stones made up of 2 or more pieces.
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