Cinnabar Theater the Aspen Music Festival. She led the Cinnabar Opera Theater in over thirty-five opera productions, including the 2010 West Coast premiere of Tobias Picker's "Emmeline" in addition to conducting productions for Lamplighters Music Theatre, Boise Opera and as Music Director of the Harrower Summer Opera Workshop at the University of Georgia. In 1988, Shuman and Klebe created the Petaluma Summer Music Festival as part of the Cinnabar Arts Corporation, in addition to developing the Cinnabar Chamber Singers and the Cinnabar Choral Ensemble. The theater has also served as a home for dancer/choreographer Ann Woodhead's Mercury Moving Company and the experimental
Metal subsurface mines. In some cases, the sale price of the metal/s involved make it economically feasible to mine lower concentration sources. Once the ore is mined, the metals must be extracted, usually by chemical or electrolytic reduction. Pyrometallurgy uses high temperatures to convert ore into raw metals, while hydrometallurgy employs aqueous chemistry for the same purpose. The methods used depend on the metal and their contaminants. When a metal ore is an ionic compound of that metal and a non-metal, the ore must usually be smelted—heated with a reducing agent—to extract the pure metal. Many common metals, such as iron,