1. Aliases
Green salt, rock salt, Rong salt, Hu salt, rock salt, Qiang salt, and Yintu salt.
2. Mineral morphology
The crystal structure belongs to the equiaxed crystal system. Crystals are mostly cubes, which aggregate into loose or dense grain like and block like structures. Due to the rapid growth of the crystal edges of the cube, the crystal surface is concave and funnel-shaped. Colorless transparent or gray (chromatin is muddy oil spots), yellow (stained with iron hydroxide), red (stained with anhydrous iron oxide), brown or black (stained with organic matter), or blue spots. The stripes are white. Has a glassy luster that darkens or appears oily due to deliquescence. Complete cleavage. The fracture is shell like. Hardness is 2-2.5. Relative density 2.1 to 2.2 (measured value is 2.152).
3. Origin distribution
Formed mostly in dry salt bearing basins and modern salt lakes, it is formed by chemical deposition in salt lakes, and also includes cliff (rock) salts in sedimentary layers of different geological periods, mostly primary salts. It is distributed in Qinghai, Gansu, Xinjiang, Shaanxi, Inner Mongolia, Shandong, Anhui, Yunnan and Xizang. Mainly produced in Qinghai, Xinjiang, and Inner Mongolia.
4. Harvesting and processing
Can be harvested throughout the year. Harvest mostly from June to August, remove from salt lakes, and sun dry.
5. Characteristics of medicinal herbs
Irregular multi block shape. Large particles can be seen as funnel-shaped growth relics, forming irregular pits. Blue white to dark white, semi transparent, with a fat like luster, and some can see unevenly distributed blue spots. Hard and brittle, easy to break, clean cross-section, with a glassy luster. Mild in flavor and salty in taste.
6. Nature, taste, and meridian tropism
Cold in nature and salty in taste. Guixin Meridian, Kidney Meridian, and Bladder Meridian.
7. Effect and function
Relieve heat, cool blood, brighten eyes, and moisturize dryness. Clear heat and laxative gunpowder belonging to the subcategory of heat clearing medicine.
8. Clinical applications
Dosage: 0.6-1 grams, decoct and take, or add to pills or powder; Apply an appropriate amount externally, wipe your teeth or rinse your mouth and eyes with hydration. Used to treat hematuria, hematemesis, bleeding of the teeth and tongue, swelling and pain of the eyes, wind eye erosion, toothache, and constipation.
9. Pharmacological research
The dilute solution of oral administration of green salt can promote gastric secretion, increase gastric acid and aid digestion, stimulate the intestinal mucosa, enhance its peristalsis and secretion, and facilitate the excretion of feces. As for the absorption of free sodium ions into the bloodstream, due to the effect of osmotic pressure, it can absorb water from tissues and stimulate the kidneys, resulting in diuretic effects. In addition, it also has some coagulation effects on blood.
10. Chemical composition
Mainly containing sodium chloride, in addition to potassium chloride, magnesium chloride, calcium chloride, magnesium sulfate, calcium sulfate, and iron, the impurities contained are mostly mechanical mixtures.
11. Taboos for use
Use with caution for those with edema.
12. Compatibility prescription
① Cure the wind and tear in the eyes: point it at the salt and water of Rong. (Puji Fang)
② To treat red eye swelling and pain caused by ancient wind: one part each of green salt, one part each of ammonium salt, and one part each of stone bile. To apply medicine, soak a small cup of vinegar water in porcelain and expose it to sunlight. Wait for the medicine to adhere to the four sides of the porcelain, scrape it dry and take it as big as corn. When lying down at night, focus on the two canthus, only three or four degrees. (Shenghui Fang)
③ To treat kidney deficiency and cold, liver and diaphragm floating and hot, causing clouding in both eyes, and black flowers that do not heal for a long time: one or two pieces of green salt (fresh and pure), one or two pieces of Atractylodes macrocephala (soaked in rice and swill), and one or two pieces of horseshoe (soaked in urine). The upper part is fine powder, and the hollow cooked water is mixed with one coin. If it is too large to see anything, it can only take ten coats, while the smaller part can only take two or three coats. (Qing Salt Decoction in the Classic of Ancient and Modern Medicine)
④ To treat toothache caused by wind heat: one pound of green salt and half a pound of locust branches. Four bowls of water, two bowls of frying sauce, boil salt until dry, stir fry until ground, and wipe teeth daily. (Tang Yao's Experience Formula)
⑤ To treat sore throat and persistent water retention: divide into equal parts of green salt, white alum, and ammonium salt. Above is the end, blowing on the affected area will produce phlegm and take immediate effect. (The Broken Coffin Pill in "Kou Ting Lei Yao")
⑥ Difficulty in treating urination: half a kilogram of Poria cocos, two liang of Atractylodes macrocephala, and one larger Rong salt bullet. Add three flavors, add five liters of water, boil three liters, divide the temperature before serving. (Fu Ling Rong Yan Tang in "Jin Kui Yao Lue")
⑦ Treatment of pediatric dysentery: Mix green salt and juice, take half a cup per serving. (The Essential Principles of Danxi Governance)
The content of the article is for clinical reference only. Non professionals in traditional Chinese medicine are not allowed to try medication.