This is a rather large, glassy and gemmy, sherry-colored topaz from Tepetate. The whitish mass at the termination is a cluster of spheroidal hyalite opal, which fluoresces. Many such crystals were found prior to the 1980s, but now they are seldom seen on the market, even in small size. This one is a monster for the locale, among the largest that I know of, and would be considered a MAJOR Mexican topaz crystal. Comes with custom lucite base already made for the specimen. This specimen was on loaned exhibit in the University of Arizona Museum for over a decade until my purchase of this collection in 2008.