OPAL GLASS PENDANT. The last piece from our collection we sourced nearly 15 years ago. An attractive colourful pendant that catches the eye, with its dazzling colours, check the images. These old pieces of 1960`s Australian Opal glass have proven very popular, this created glass Opal was also known as Slocum stone. This pendant weights 8.2g, it is 3.8cm long and 1.9cm wide.