These are 15x rough cut or rubbed pieces of boulder opals from Queensland, Australia.
The light coloured material is softer and more porous.
Some will need work with a rotary tool to finish.
Some may have only a thin layer of colour.
These pieces are in a rough form...they are NOT finished opals.
Please study the sizes carefully...I can NOT make them bigger than they are.
The ruler is in millimetres.
This rough is meant for lapidarists.
All opals, pendants, jewellery etc are ground, sanded, polished and assembled in Melbourne Australia.
Photos are taken under a 60w daylight bulb.
Actual item is shown in photos.
Photos are greatly magnified showing imperfections which the eye can't see.
Please read terms of sale.