The Manoel Mutuca Mine, is acclaimed for gem-caliber tourmaline in sumptuous hues of blue and dark-green. Although much of what was produced became gem rough, the fine specimens that remain are treasured for their stunning luster and incredible color.

Among the preserved specimens is an even smaller subset of tourmaline of particular fascination to collectors. They are lustrous, deep-green tourmaline specimens that reveal central cores of cerulean blue, which can be seen at the bottom of each crystal like a stem. This is one such example with a slender, cerulean-blue stem.

It is topped by a more robust, emerald-green body that is then capped by a beautiful deep-blue color zone. The specimen’s shape suggests that at one point, the green layer covered the light-blue core entirely. Lustrous, defined, and colorful, this specimen exemplifies why Mutuca specimens have retained their worldwide acclaim.