The 7th China (Hunan) International Mineral & Gem Expon (CMGE) opened in Chenzhou City on July 17. More than 1,000 mineral and gemstone enterprises at home and abroad, including American Fashion Mineral Company, Meijing International Mineral Company and more than 380 well-known international exhibitors from more than 50 countries, participated in the exhibition with their treasures. The theme of the 7th CMGE is "Magic Crystals, Colorful Bismuth".

In the Mineral Boutique Area on the second floor of Chenzhou International Convention and Exhibition Center, the colorful Bismuth Tower in the middle of the exhibition area attracted the visitors, in the shape of cone, 1.8 meters high, colorful and dazzling in the light.

The exhibition of 94 kilograms of natural gold has also become a highlight of this Expo. This natural gold was discovered in Australia last August, about 60 centimeters long and 42 centimeters wide, containing about 39,689 grams of gold, which is the largest natural gold found in the world so far. China (Hunan) Mineral & Gem Expo has a great influence in the world and it has become very mature and internationalized after 7 years of development.