Identification & Quality Standard
Gypsum Fibrosum
Botanical Origin
The mineral gypsum, which is primarily composed of CaSO4•2H2O. After harvested, remove the foreign stones and sands.
Production Regions
Primarily produced in mines in the Chinese provinces of Shandong, Inner Mongolia, Hubei, Jilin, Jiangsu, Shandong, Guangxi, Shanxi, Ningxia.
Quality Requirements
Superior medicinal material is white, heavy, soft, with silk-like lustrous longitudinal fractured surface.
Macroscopic Features
Fibrous aggregate lumps, long lump-like, flake-like, or irregular lumps. White, grayish-white or pale yellow, sometimes translucent. Heavy in weight, soft texture, longitudinal fractured surface is silk-like and lustrous. faint odor, tasteless.
