Producing salt by evaporating natural brine by pouring it into a pit of burning charcoal. A rather impure product resulted. From Agricola 'De re...
Workers and villagers collect crude salt at a salt pond in Luocheng Town on October 7, 2017 in Zhangye, Gansu Province of China.
Workers and villagers collect crude salt at a salt pond in Luocheng Town on October 7, 2017 in Zhangye, Gansu Province of China.
Workers and villagers collect crude salt at a salt pond in Luocheng Town on October 7, 2017 in Zhangye, Gansu Province of China.
Workers and villagers collect crude salt at a salt pond in Luocheng Town on October 7, 2017 in Zhangye, Gansu Province of China.
Workers and villagers collect crude salt at a salt pond in Luocheng Town on October 7, 2017 in Zhangye, Gansu Province of China.
Workers and villagers collect crude salt at a salt pond in Luocheng Town on October 7, 2017 in Zhangye, Gansu Province of China.
Workers and villagers collect crude salt at a salt pond in Luocheng Town on October 7, 2017 in Zhangye, Gansu Province of China.
Workers and villagers collect crude salt at a salt pond in Luocheng Town on October 7, 2017 in Zhangye, Gansu Province of China.
a briny pond in the middle of a salt flat with interesting rock formations rising in the background. danakil depression, ethiopia - salt pond 個照片及圖片檔
