October's Birthstone is Opal. Find yours in Nanas Jewel Box!

October's Birthstone is Opal. Find yours in Nanas Jewel Box! Unlike most other gemstones, opal is therefore not a crystal, but rather an amorphous solid. Opal is found in fossilized shell, wood and bone. Some precious opal forms in gas cavities in volcanic rocks, as in Mexico, and Slovakia, but most Australian deposits occur in sedimentary rocks It was poetically called "Pandora," "Light of the World," and "Queen of Gems." In ancient times, this stone was believed to possess all the characteristics of all gemstones and is used because it represents hope, clarity, and truth. Black opal is the most rare and highly valued form of opal, and has what is called a black (or dark) body tone. Black opals come in every color of the rainbow. Their dark body tone makes the colours on the face of the opal appear rich and intense.