Beautiful and extremely rare Cumengeite star crystal of 6mm from the type locality of Amelia Mine, Boleo District, Mexico. It is perfect, text book like single crystal with 6-point symmetry and truncated pyramidal terminations. It is complete all over with deep indigo-blue color and royal-blue areas which are gemmy. The crystal has strong luster. It is a classic Mexican rarity. In superb condition – some micro imperfections. On acrylic base.

Fantastic!