The content of gold in the earth′s crust is only 0.011 ppm, and it is unevenly distributed, that is, only under special geological conditions can there be gold mines, plus people think that gold is beautiful, so it is cherished by people. In this topic, we introduce gold samples from major gold producing areas, as well as the principles of detecting gold deposits and the formation of gold deposits. The features of this book are: 1. A more comprehensive introduction to the famous and unique gold mines on the earth. This book is undoubtedly a good reference for friends who want to get to know the gold mines. 2. It contains an introduction to the unique gold mines in Taiwan′s Jinguashi and Jiufen. This is the first time that gold mines in this place have been fully presented through a book. I would like to thank the Jinjiu mineral collector Zhang Yingjie, Xia Guoxiong old miner, Chen Huosheng old miner and others for providing specimens and assistance. Let the only remaining orphans in the gold mines here once again give the world a chance to appreciate them. 3. Although some foreign gold mines are not as exaggerated as orphans, they are also extremely rare. Some of them are not in the gallery. They are collected from more than 50 countries, more than 300 mines or places, and thousands of gold mines. The exquisite products selected from the specimens can be said to be beautiful. Taiwan′s early textbooks stated that Taiwan lacked metal minerals, and only a small amount of gold and copper was produced in Ruifang. It was not until the autumn of 1991 that my wife and I first visited Jinjiu (Jinkuashi and Jiufen are collectively called. Jinjiu is also the area where Ruifang produces gold and copper) that this introduction is very incorrect. At that time, it was not long before the Jinguashi Gold Mine ceased production (1987), and it was in a state of depression. With a feeling of learning and care, I asked the old miners about the relevant knowledge and information about the gold mine. As a result, I found that the old miners only knew how to mine gold, but don′t know much about the relevant academic principles. I originally thought that the reports or writings of government agencies and academic institutions could be fully accountable, but the situation was not satisfactory. Since I have been interested in chemistry for a long time, it can be considered a little basic, so I met with the old miners to help solve the mystery of the Jinguashi gold mine. In the next 20 years, as long as there is no work, I rode a motorcycle from Taoyuan to Jinguashi exploration, and discuss with old miners, nearly 800 round trips. Thirty years have passed, this book is considered complete, and finally the promise of the year has been fulfilled. Lin Chi Chou was born on January 22, 1958, in New Taipei City, Taiwan. Graduated from the Department of Nuclear Engineering, National Tsinghua University in 1980 After leaving the army in 1982, I devoted myself to science education. Currently the curator of Taoyuan Mineral Museum. If readers have comments, please contact me at [email protected]