(IDEX Online) - A new trade fair launches this September in Denver, Colorado, USA.The HardRock Summit will feature gemstones and jewelry at Sparkle & Joy, and minerals, fossils and meteorites at a parallel event called Evolution.Organizers are expecting 400 exhibitors altogether at the Colorado Convention Center (pictured) and the nearby Sheraton Denver Downtown Hotel.Co-founders of HardRock are Christoph Keilmann, organizer of Gemworld Munich, and Wolter Mehring, entrepreneur and gemstone industry expert.Sparkle & Joy (September 18 - 21) will feature workshops, hands-on training, international exchange, educational programs and live presentations.