Uniquely designed White Buffalo stone necklace. Measuring 20" in length with a 2" chain extension. The barrel stone shaped beads give this necklace a great look. The sizes of the beads are about 6mm, this allows you to wear your favorite pendant on it. WHITE BUFFALO STONE NECKLACE WHITE BUFFALO The White Buffalo stone originates from the Tonopah Nevada area found in the same general veins as Dry Creek turquoise but has no copper content. Considering this fact, it should therefore NOT be called "white, turquoise" as it does not have the same chemical composition as turquoise, which is a copper phosphate. There is no copper to cause blue color or iron to cause green color. It is a mostly clean white calcite/quartz mix with black chert inclusions (matrix) that are more sharply defined as opposed to being smutty. The better stones have clear delineations of black and white.