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According to the *Guangzhou Ji* (Records of Guangzhou): It is produced at the foot of Mount Kunlun. The pieces that are granular, block-like, crystal clear, pure, and free from stone impurities are considered superior. It treats wind-cold pathogens, deficiency and exhaustion, coldness of the Kidney, rebellious Qi rising upward, weakness and emaciation of the legs and knees, promotes flesh growth, tonifies Qi and strength, treats spermatorrhea, hemorrhoids with leakage, and wind-type constipation in the elderly. All these indications are suitable for treatment after calcination and processing. In alchemical texts, it is called "Yellow Sand" (Huangsha), which can dissolve the five metals and also create gold color. If humans can subdue it and restore its original color, taking it can eliminate myriad diseases. If adverse reactions occur, they should be resolved with pork meat, duck soup, or Phyllanthus emblica decoction. Yazhou in Shu also produces it; although it is very lustrous and fine, its efficacy is inferior to that imported by sea. (Cited from *Daguan Bencao*, Vol. 4, p. 10; *Zhenghe Bencao*, p. 103; *Bencao Gangmu*, p. 702)

According to the *Gujin Lu* (Records of Past and Present): It is produced on stones in Persia. Its taste is salty and astringent. It treats brightening the eyes, eliminating nebulae (cataracts/opacities), for eye application, and for infant Wugu malnutrition (infantile malnutrition syndrome). It is rarely used in medical prescriptions. According to records, the variety imported by ship is called "Stone Green" (Shilü), used for dyeing where the color remains unchanged over time. Those manufactured in China using copper alloys are unsuitable for medicinal use, and their color does not last long. (Cited from *Daguan Bencao*, Vol. 4, p. 25; *Zhenghe Bencao*, p. 112; *Bencao Gangmu*, p. 692)

According to the *Guangzhou Ji*: It grows in the valleys of the South Sea. The tree has a purplish-red color, formed from the resinous exudate of the wood. It treats damp-heat itching sores and scabies, and is suitable for incorporation into ointments. It can also be used to manufacture Hu Yanzhi (foreign rouge); the remaining dregs are used by jade workers as an abrasive. (Cited from *Daguan Bencao*, Vol. 13, p. 15; *Zhenghe Bencao*, p. 320; *Bencao Gangmu*, p. 1510)

According to the *Nanyue Zhi*: This is the resin of the Zikuang tree. Its taste is sweet, nature is warm, and it is non-toxic. It treats traumatic injuries and fractures, all kinds of pain, tonifies deficiency, and addresses chaotic Qi and blood causing stabbing sensations, as well as internal injuries leading to blood stasis accumulation. All are best taken with wine. To verify authenticity, simply chew it; the superior grade will not break down and feels like wax. (Cited from *Daguan Bencao*, Vol. 13, p. 15; *Zhenghe Bencao*, p. 320; *Bencao Gangmu*, p. 1373)

According to the *Jin Liezhuan* (Biographies of Jin): The coral trees in Shi Chong's Jingu Garden have bark resembling peanut florets. Its taste is sweet, nature is neutral, and it is non-toxic. It treats resolving old blood stasis, wind-phrenzy, and other disorders. Its therapeutic actions are similar to those of Gold. (Cited from *Daguan Bencao*, Vol. 4, p. 35; *Zhenghe Bencao*, p. 116; *Bencao Gangmu*, p. 617)