The 22.2 Ct. Blackjack Turquoise Backed Cabochon is a unique and handmade gemstone that showcases the beautiful blue color of the Tonopah Nevada Ottesons Mine. This cabochon is perfect for jewelry making and crafts, adding a touch of authenticity and artistry to any project. As it is handmade, each piece is one-of-a-kind, making it a special addition to any collection or creation. i dug this material myself about two years ago. will make a great piece of jewelry.