A superb rhodizite specimen, due to the strong color, excellent luster, and sharpness of the crystal (which measures 3.1 cm across). This material is Rhodizite, though unusually Rb-rich, and is not the same as Londonite: the relatively Cs-dominant analogue of Rhodizite named after Dr. David London. This specimen was exchanged from Madagascar specialist Dr. Federico Pezzotta. He assured me that it was analyzed as Rhodizite.