This specimen of the rare mineral ERYTHRITE comes from the Bou Azzer District, Tazenakht, Souss-Massa-Draa Region, Morocco - a locality that has arguably produced the world's finest erythrite specimens. This an excellent example from the mining in 2009-10 that produced many great specimens. Erythrite is usually found as thin crusts or massive veins, and well-formed euhedral crystals are rare. I found this specimen on the table of one of the Moroccan dealers who was set up at the Tucson Gem Rock and Mineral Show, and was surprised to learn that he had mined it himself.