Please visit us at the 42nd annual Denver Gem and Mineral Show at the Merchandise Mart, Denver from September 18 to 20, 2009. Mineral Zone will occupy glass showroom J48 (click here for map). We have new rosasite, aurichalcite, calcite specimens from Mexico; fine red wulfenite from China; new plumbogummite specimens from China; selections from the Jack Zektzer (Seattle, Washington) collection and more…