Form the Mindat specimen description: " This material from Hezhou is somewhat reminiscent of the classic specimens from the Mission Mine in Arizona. This toenail sized specimen features a water-clear, completely colorless crystal of gypsum (var.selenite) which plays host to attractive, bright arborescent inclusions of native copper. The copper is best seen under magnification, but it's beautiful up close. From the collection of Shields Flynn." With the exception of Mission Mine material, gypsum included with copper is globally rare.