Tucson, Arizona’s Hotel Congress will be the locale for an event that pledges to celebrate rock in its many forms. On February third, the second annual Tucson Jam & Gem Show will be integrating the beauty of gems and minerals with the art of sound. Music will be provided by Zilla and Pnuma, which should make for a quality night, even for our readers who arent together sold on the concept of integrating the beauty of gems and minerals with the art of sound.