Qing Fen (Calomel)
Qing Fen (Calomel) (Snowflake crystals, silvery luster, light in weight, easily crushed into powder by hand)
【Naming】
【Source】
Ben Cao Shi Yi (Supplement to Materia Medica)
【Common Usage Level】
E
【Botanical Origin】
It is crystallized, crudely processed mercurous chloride.
【Characteristics】
It is a white, shiny, scaly or snowflake-like crystal, or crystalline powder. It is light in weight, easily crushed by hand, odorless, tasteless, and slowly darkens in color when exposed to light. It is a flaky crystal, shaped like a snowflake. The color is white, with a silvery luster. It is light in weight and can be easily crushed into a white powder by hand.
【Identification】
The best quality is white, large flakes, bright, needle-shaped crystals, light in weight, and free of mercury beads.
【Category】
Minerals