20hhgd.is ((BOULDER OPAL)), $35 MINIMUM BID, Winton, Winton Shire, Queensland, Australia, 10 x 6 x 2 cm, Cabinet | |
Sawn flat on the backside, sits flat or upright. Thin seem of bluish Opal. I saw a video that shown how the seams of Opal with in the matrix rock are exposed by hand splitting the seams. ex Glenn Davidson collection. ex Astro Gallery specimen |