Production RegionsPrimarily produced in the Chinese provinces of Shandong, Jiangsu, Shaanxi.
Macroscopic FeaturesAggregated scaly flakes, irregular lumps or crushed flakes, flake diameter, lump diameter are 2~10cm, thickness 0.6~1.5cm, no obvious ridges. Brownish-yellow, with golden-yellow or silver-white luster. Brittle texture, easy to crush into small golden glittering flakes when rubbed in hands. Slippery. faint odor; tasteless.
Quality RequirementsSuperior medicinal material is golden yellow, intact, with no foreign matter.
PropertiesSweet, salty; neutral
FunctionsDownbears phlegm and qi, calms the liver, settles fright. Apply to chronic phlegm stasis, cough and panting, epilepsy, chest tightness and vexation, convulsion and.
OriginThe vermiculite or Hydrobiotite (a metamorphic rock).