Jalpaite is a very rare species, and only a few large crystals are known to exist. This specimen, believed to have been found around the turn of the 1900s, is huge for the species. And, it is quite attractive. This crystal is pronounced to be the best of species, by those who have studied Mexican mineralogy far more than I. It comes from the type locality, and was passed down through several hands to Dr. Romero for his collection. This specimen from the Dr Miguel Romero collection was on loan exhibition to the University of Arizona Museum for over a decade, until my purchase of this collection in 2008. It was on display in special cases at the museum, and has since been featured in the book "The Miguel Romero Collection of Mexico Minerals" which we sponsored as a special supplement book (published by the Mineralogical Record in December of 2008).
Reconeixement: Rob Lavinsky, iRocks.com – CC-BY-SA-3.0
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