DIASPORE is a native aluminum oxide hydroxide which crystallized in the orthorhombic habit. This crystal, which comes from the well-known locality in Menderes, Yatagan-Mugla, Turkey, is a lovely pale shade of transparent yellow-green. The crystal is slightly dichroic - when viewed down the length of the crystal, the color appears to be a subtle lime green! The crystal has a fairly good termination and the sides of the crystal show nice striations. Diaspore crystals are hard to find, and good diaspore crystals are very highly prized. I found this piece at the Tucson Gem Rock and Mineral Show this year on the table of a Turkish mineral dealer whom I've been buying kammererite from for years. Since the mine closed decades ago, this is old material; there are no active sources for diaspore crystals, so I think this is a fine choice for any collector.