Green salt benefits and functions

Everyone is familiar with green salt, but of course some people are unfamiliar with it. In fact, green salt is a relatively common Chinese medicinal material. So what exactly does green salt do?

[Other names] Malachite (Haiyao Bencao), Salt Green (Compendium of Materia Medica).

[Source] It is the ore of the halide mineral cuprate .

【Original form】 Orthorhombic crystal system. The crystals are columnar or plate-shaped, with vertical stripes on the surface. It is also a collection of fibrous, granular, kidney-shaped, and dense shapes. The colors are beautiful green, emerald green or dark green. The streak is apple green. Luster: diamond-like or glassy. Transparent to translucent. Cleavage is complete along the axial plane. The fracture is shell-shaped. Hardness: 3~3.5. Specific gravity: 3.75～3.77. Brittle in nature. When burned with fire, the flame appears sky blue; when placed in a closed tube and heated, it produces water. Acids can dissolve it into a green solution. Produced in the copper ore oxidation zone.

【Chemical composition】 The main component is 2Cu2(OH)3C1. Theoretically, it contains 59.5% copper, 16.6% chlorine and 12.7% water.

【Properties and flavors】 ① "Tang Materia Medica": "Tastes salty, bitter and spicy, neutral, non-toxic."

【Functions and indications】 Treats cataracts, dark and astringent eyes, and excessive tears and mucus.

【Usage and Dosage】 For external use: grind into powder and apply to eyes.

【Note】 Not suitable for internal use.

[Additional prescription] ① Treating blurred vision, redness, sore eyes and excessive tearing: 1 fen of salt green, 1 liang of Rhizoma Polygoni Multiflori (soaked in decoction, remove the red skin). Grind the above medicines while hot, add one part of good butter, and grind again until evenly mixed. Every night before going to bed, take a sesame seed-sized dot and place it on your body. (Sheng Hui Fang)

【Excerpt】 《*Dictionary》

[Source] 1. "Tang Materia Medica": Green salt is made by brewing bright salt, borax and red copper chips into blocks, and it is green in color. The real one comes from Yanqi and can be found in the water. It looks like flat green or empty green. It is an essential eye drop.

Through the detailed introduction of green salt in this article, we can learn about the relevant functions and consumption methods of green salt. The value of green salt can be seen from its efficacy, which fully reflects the importance of green salt.