Australian Opal, Boulder Opal Solid Polished Loose Natural Gemstone 9293

A rare gem red color natural Australian Boulder Opal DL1827

When looked at from the side you can always tell a genuine solid boulder opal by the natural uneven line where the opal filled the void in the boulder. Australian opal, boulder opal solid polished loose natural gemstone 9293 boulder opal is a type of opal that forms within the cavities of ironstone boulders in both vertical and horizontal cracks.