Rock crystal skeletal quartz, pericline – Teufelsmühle, Habachtal, Salzburg, Austria
 Skeletonized rock crystal all around. Clear as melting ice for the most part, this piece from the Habach Valley is distinguished by its outstanding luster. In addition to the quality of the quartz, the aesthetic structure is particularly noteworthy. The intergrown pericline forms a beautiful contrast with the transparent rock crystal. The combination of pericline and quartz creates a very rare skeletal quartz cluster!