White Buffalo Ring - Size 7.5. This is such an unusual stone. Bright white with black striations. You will really love this stone! The ring band is a nice, wide, hammered Sterling Silver band. The stone is white calcite with black chert striations. Truly a eye catching stone that you will wear again and again! Pair this ring with a matching pendant and earrings that are available NOW before they are gone. Check out the Pendant and Earrings sections.