The Aurora Variscite Pseudomorph Sterling Silver Tufa Cast Ring by George Hayden is a handmade, Native American-inspired piece featuring a rectangle-shaped main stone of natural green Aurora Variscite, that once was a clam. The ring is crafted with high-grade materials and a 925 silver base, showcasing a unique bezel setting and a square-shaped stone. This size 12 ring is signed, weighs 30.8 grams, and has a total carat weight of 18.90, making it a statement piece suitable for any occasion. I bought the raw stone right from the miner in Nevada, see the clam Pseudomorph prior to cutting in the pictures.