Calcite and Sphalerite, on Galena and Pyrite - Huanzala, Peru

This is a find from one of the Peruvian dealers at the 2017 Tucson show. The first pic is a combination of longwave and shortwave; the sphalerite is really only fluorescent under LW, while the calcite shows best under SW. Interestingly, the sphalerite - unlike most - is not phosphorescent. The calcite shows an intense but brief flash.

18 views0 comments