《中药大辞典》称:“《本草》所载的寒水石,据考证为芒硝的天然晶体,但近代寒水石药材的商品,有红石膏与方解石二种,前者多用于北方,后者多用于南方。” 经调查,目前我国北方所用寒水石多为含有微量铁元素等的红石膏,南方的寒水石多为方解石。认为芒硝天然晶体为寒水石者,只是写在《中药学》上,实际应用并不存在。然而,寒水石一名三源的同名异物现象给医疗、教学、科研带来不少麻烦。此现象何以 “Chinese Medicine Dictionary” said: “Ben Cao” contained in the cold water stone, according to research natural Glauber’s salt crystals, but the modern Hanshui stone medicine goods, there are two kinds of red plaster and calcite, the former mostly used in the north, the latter used The south.” After investigation, at present, the cold water stones used in northern China are mostly red gypsum containing trace amounts of iron elements, and the cold water stones in the south are mostly calcite. Natural Glauber’s salt crystals are considered to be cold water stones, but they are written in “Chinese medicine” and practical applications do not exist. However, the phenomenon of foreign matter with the same name of Hanshuishi has brought a lot of trouble to medical treatment, teaching, and scientific research. Why is this phenomenon