This opal is a favorite! That’s not only because of its beautiful colors but also because of a special trait—distinctive “bubbles” appearing throughout the entire specimen. But these ‘bubbles” are not filled with air— they the product of crystal formation. A close look shows that they are multilayered deep into the opal. These 1” thick polished blocks stand upright on flat surfaces and are made from a superior cast method for clarity, depth and realism. The image in the print is created by artisan Giclee process and has been enlarged for a superb viewing experience. Makes a stunning showpiece on shelf, desk, table! Photo credit: Klaus Schäfer