Emerging dramatically from a matrix of gray rhyolite is a cluster of elongated topaz crystals, to 4.2 cm in length. The crystals become much gemmier near their terminations, which are a rich sherry color with great luster. This is definitely one of the nicer clusters I have seen recently from this famous deposit. In fact, it is a well-known piece given the nickname "The Wad" by Ryan Bowling when he collected it, and it is photographed for the book on Utah Topaz put out by the partnership that ran this mine for some time. Overall, a superb 3-dimensional cluster of unusual richness...seldom do you find so many gemmy crystals in aggregation. Ex. Dr. Edward David and John Holfert Collections.
Attribution: Rob Lavinsky, iRocks.com – CC-BY-SA-3.0
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:: Locality: Topaz Mountain, Thomas Range, Juab County, Utah, USA ([http://www.mindat.org/loc-14942.html Locality at mindat.org])