（本经上品）
【气味】甘，微温，无毒。
【主治】主消渴，阴痿不足，咳逆，胸膈间久寒，益气，阴风湿痹，久服轻身长年。
【核】曰∶出华阴山谷，及太山，今泽州、虢州、雒州亦有。近取泽州者为胜。大如指，
长二三寸，六棱如削，白澈有光，长五六寸者弥佳。黄端白棱者，名黄石英；赤端白棱者，
名赤石英；青端赤棱者，名青石英；黑泽有光者，名黑石英。若细而长，及大而不正，与多
瑕疵者，都不堪用。时珍云∶泽州有英鸡，嗜石英而性补。五石英制汞死砒，恶马目毒公。
【 】曰∶色相莹如华萼，故名石英。以石质可入肾，白色可入肺，中含火气可逐寒，
故主肾气不周于胸而消渴，天癸枯竭而阴痿不足，肺不容平而咳逆上气，气无帅制而痹闭不
输，火失修容而胸膈久寒。久服轻身长年，宁静所致耳。
（本经上品）
【气味】并甘平，无毒。
【主治】主黄胆，泄痢肠 浓血，阴蚀，下血赤白，邪气痈肿，疽痔恶疮，头疡疥瘙。
久服补髓，益气，肥健不饥，轻身延年。五色石脂，各随五色入五脏。
【核】曰∶青色脂，生南山，或海涯；白色脂，生少室天娄山，或太山；黄色脂，生嵩
山，色如 胸、雁雏；黑色脂，生雒西山空地；赤色脂，生少室，或太山延州，色如绛，滑
如脂。皆揭两石中取之，以理细粘舌缀唇者为上。修治，研如粉，新汲水飞过三度，晒干用。
畏黄芩、大黄、官桂。先人云∶膏释脂凝，皆肌肉中液也。肌肉有余，则其气扬于外，凝中
大有不凝义。世人止知固济，未尽石脂大体，三复本经自见。又云∶有上贯四旁义，肾水得
用义，六腑净洁义，心邪顺去义。
(Shennong Bencao Jing, Upper Grade)
[Flavor and Nature] Sweet, slightly warm, non-toxic.
[Indications] Primarily treats Xiao Ke (Wasting and Thirsting Syndrome), insufficient Yang impotence, cough with counterflow Qi, chronic cold in the chest and diaphragm, tonifies Yuan Qi, treats Yin wind-damp Bi syndrome (painful obstruction due to wind-dampness affecting the Yin aspect), and long-term use makes the body light and prolongs life.
[Verification] It is said: Produced in the valleys of Huayin and Mount Tai; currently also found in Zezhou, Guozhou, and Luozhou. Those recently sourced from Zezhou are superior. The stones are as thick as a finger, two or three cun in length, with six edges as if planed, white, clear, and lustrous; those five to six cun long are even better. Those with a yellow end and white edges are named Huang Shiyin (Yellow Quartz); those with a red end and white edges are named Chi Shiyin (Red Quartz); those with a green end and red edges are named Qing Shiyin (Green Quartz); those that are black and lustrous are named Hei Shiyin (Black Quartz). If they are thin and long, or large but irregular, and have many flaws, they are unusable. Li Shizhen said: There is a Ying chicken in Zezhou that loves to eat Shiyin, and its nature is tonifying. The five types of Shiyin can subdue Mercury and Dead Arsenic, and they are adverse to Ma Mu Du Gong (a herb).
[Commentary] It is said: Its color is bright and crystal-like like flower calyxes, hence the name Shiyin (Quartz). Because the stone quality can enter the Kidney, the white color can enter the Lung, and the contained Fire Qi can expel cold, it primarily treats Xiao Ke caused by Kidney Qi failing to circulate through the chest, insufficient Yang impotence due to depletion of Tian Gui (Heavenly Water), cough and counterflow Qi due to the Lung's inability to descend smoothly, Bi obstruction and blockage due to Qi lacking command and control, and chronic cold in the chest and diaphragm due to Fire losing its nurturing appearance. Long-term use making the body light and prolonging life is the result of tranquility.
(Shennong Bencao Jing, Upper Grade)
[Flavor and Nature] All sweet and neutral, non-toxic.
[Indications] Primarily treats Huang Dan (Jaundice), diarrhea and dysentery with pus and blood, erosion of the genitals, passage of red and white discharge, abscesses and swellings caused by pathogenic factors, ulcers, hemorrhoids, malignant sores, head sores, scabies, and itching. Long-term use fills the marrow, tonifies Qi, makes the body plump and strong without hunger, lightens the body, and prolongs life. The five colors of Shizhi (Clay) each enter their corresponding Zang organs according to their colors.
[Verification] It is said: Green Shizhi grows in the Southern Mountains or by the sea; White Shizhi grows on Tianlou Mountain of Mount Shaoshi or Mount Tai; Yellow Shizhi grows on Mount Song, colored like the human chest or gosling down; Black Shizhi grows in empty lands west of Luocheng; Red Shizhi grows on Mount Shaoshi or Yanzhou on Mount Tai, colored like crimson, smooth like fat. All are extracted between two stones, with those having fine texture, sticking to the tongue, and adhering to the lips being of the highest grade. Processing involves grinding into powder, washing three times with freshly drawn water, and drying in the sun. Adverse to Huang Qin (Scutellaria Root), Da Huang (Rhubarb Root), and Guan Gui (Cinnamon Bark). Ancestors said: Gao (ointment/paste) is liquid, Zhi (fat/clay) is solid; both are fluids from muscles. When muscles are abundant, their Qi spreads outward, implying within the solidification there is a meaning of non-solidification. People only know its astringent and consolidating properties, not fully grasping the general principle of Shizhi; repeatedly reviewing the Bencao Jing will reveal this. It is also said: It has the meaning of connecting the upper, lower, and four sides; the meaning of Kidney Water functioning; the meaning of cleansing the Six Fu Organs; and the meaning of Heart pathogens departing smoothly.