Tucson Jewelry, Gem and mineral exposition show 2014

Tucson Arizona gem show is on shortly Mr Chap from B Tree Gems will have on display one of the rarest gemstone of all "Museum Collector's item a Black opal over 500 cts from lightning Ridge

 http://tucson.jgmexpo.com/exhibitors 

Booth number is 202  United States telephone number 520 2501291