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.




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