Native Antimony with Valentinite (rare locality)

Item Description

A very rarely seen specimen of hefty Native Antimony from this obscure locality. This is not only a rich example of this native element, featuring brightly metallic silver colored patches on all sides, but it also features attractive golden-brown micro-crystalline Valentinite (which forms as an oxidation of antimony). The piece weighs 558 grams, much heavier in the hand than you would expect. This is certainly the biggest and I would say best example of this material that we've had to offer in the auctions.
From the worldwide mineral collection of Albert Lewis Kidwell (January 1, 1919 - August 16, 2008) with an old label from "BURMINCO". Al was a well-known mineral collector and research geologist with Carter Oil Company and later Exxon Oil Company in Houston, Texas. The phosphate species Kidwellite was named in his honor in 1974 ( https://www.mindat.org/photo-326405.html ).