Glassy, amethyst-color Apatite crystals and gray-green cubes of Fluorite - what a neat association! From the Piaotang Mine, Xihuashan intrusion, Dayu Co., Ganzhou Prefecture, Jiangxi Province. Specimen was purchased from Berthold Ottens, author of the comprehensive 550-page book about the minerals of China: China: Mineralien – Fundstellen – Lagerstaetten.