Sapo tourmalines are one of the most famous tourmaline finds of all time, and specimens today are rarely available, in any size. This is a beautiful, multi-colored thumbnail with a distinctive zones of red/pink, light green, and blue. These blue-caps were the hit of the tourmaline market in the late 1990s, and no more have been found there to this day. From the worldwide thumbnail collection of Shields Flynn. This is a sharp and colorful thumbnail tourmaline from a famous find.