Zi Ran Tong

NamingZi Ran Tong (Pyritum)——Lei Gong Pao Zhi Lun (Lei’s Treaties on Preparation of Drugs)The Processing of 自然铜OriginThe iron pyrite of sulfide mainly containing FeS2.LocationSichuan, Hunan and Yunnan provinces in China.HarvestCollected all the time.The actual smell and tasteNo smell and taste.Best

NamingZi Ran Tong (Pyritum)——Lei Gong Pao Zhi Lun (Lei’s Treaties on Preparation of Drugs)The Processing of PyritumOriginThe iron pyrite of sulfide mainly containing FeS2.LocationSichuan, Hunan and Yunnan provinces in China.HarvestCollected all the time.The actual smell and tasteNo smell and taste.B