甘温，无毒。出泰山。以六棱莹白如水晶者为真。林北海先生《本草纲目必读
》，但收紫而不及白，世鲜真者可知。
《本经》治消渴，阴痿不足，咳逆，胸膈间久寒，益气除风湿痹。
发明 白石英入手太阴、足阳明气分，肺痈溃久，痿痹不起者宜之。《本经》主消渴阴
痿不足诸病，功专温肺无疑。但石性 悍，不可久服。仲景《金匮》风引汤只令碎如米粒
，不欲其滓入胃也。《千金》五石等方，俱 过水飞入丸，而五石丸专以钟乳为君，合紫白
石英、赤石脂、石膏，专温脏气，而石膏清胃，以解诸石之悍，且既经 过水飞，不虑其滓
之留中蕴热也。
甘温，无毒。出泰山。以五棱明净深紫大块者良，浙产者块小亦可入药。经火
则毒生，研极细水飞三次用。时珍云∶ 赤，醋淬七次，水飞用，非。
《本经》主心腹咳逆邪气补不足，女子风寒在子宫，绝孕十年无子。
发明 紫石英入手足少阴、厥阴血分，上能镇心定惊悸，安魂魄，摄逆气，重以去怯也
。下能益肝填补下焦，散阴火，止消渴，温以暖血也。女子经阻色淡不孕者宜之。《本经》
治女子风寒在子宫，绝孕十年者，服之能孕，非特峻补，兼散浊阴留结之验也。若血热紫黑
者禁用，为其性温也。《千金》云，妇人欲求美色者，勿服紫石英，令人色黑，非温血之
谓乎。故妇人绝孕，由于阴虚火旺，不能摄精者禁用。
(Bai Shiying / White Quartz) Sweet and warm, non-toxic. Originates from Mount Tai. The genuine variety is characterized by six edges, being crystal clear and white like rock crystal. Mr. Lin Beihai, in his *Bibei Bencao Gangmu* (Must-Read Compendium of Materia Medica), only recorded Zi Shiying but omitted Bai Shiying; it can be known that true Bai Shiying is rare in the world today.
The *Shennong Benjing* (Classic of Divine Husbandman's Materia Medica) states it treats Xiao Ke (Wasting-Thirst / Diabetes), Yin Wei Bu Zu (Insufficiency of Impotence), Ke Ni (Cough and Qi Reversal), Jiu Han in the Chest and Diaphragm (Chronic Cold in the Thoracic Region), and benefits Qi while dispelling Feng Shi Bi (Wind-Dampness Bi Syndrome).
[Invention] Bai Shiying enters the Qi aspect of the Hand-Taiyin Lung Meridian and Foot-Yangming Stomach Meridian. It is suitable for cases of Fei Yong (Lung Abscess) that have ulcerated for a long time, or Wei Bi (Flaccidity and Bi Syndrome) where one cannot rise. The *Shennong Benjing* primarily addresses Xiao Ke, Yin Wei Bu Zu, and other conditions; its efficacy is undoubtedly specialized in warming the Lungs. However, mineral drugs possess a fierce and aggressive nature and should not be taken for a long time. In Zhang Zhongjing’s *Jingui Yaolue* (Essential Prescriptions of the Golden Cabinet), the Feng Yin Tang (Wind-Driving Decoction) only requires crushing the mineral into rice-grain size, avoiding the dregs entering the stomach. In the *Qianjin Fang* (Prescriptions Worth a Thousand Gold), formulas such as Wu Shi Fang all undergo water-flying processing before being made into pills. Specifically, Wu Shi Wan (Five Minerals Pill) uses Zhong Ru (Stalactite) as the sovereign herb, combined with Zi Shiying, Bai Shiying, Chi Shi Zhi (Red Halloysite), and Shi Gao (Gypsum Fibrosum). This combination specifically warms the Zang organs' Qi. Shi Gao clears Stomach Heat to resolve the aggressive nature of the various minerals. Moreover, since they have undergone water-flying processing, there is no need to worry about dregs remaining in the middle jiao and generating heat.
(Zi Shiying / Purple Quartz) Sweet and warm, non-toxic. Originates from Mount Tai. The best quality has five edges, is bright and deep purple in color, and forms large chunks. Those produced in Zhejiang, although smaller in chunk size, can also be used medicinally. Heating over fire generates toxicity; it must be ground to an extremely fine powder and processed via water-flying three times. Li Shizhen stated: "Quench seven times in vinegar, then use after water-flying," which is incorrect.
The *Shennong Benjing* states it treats Xin Fu Ke Ni Xie Qi (Cough, Qi Reversal, and Pathogenic Factors in the Heart and Abdomen), tonifies insufficiency, and addresses cases in women where Feng Han (Wind-Cold) resides in the Zi Gong (Uterus), causing infertility for ten years.
[Invention] Zi Shiying enters the Blood aspect of the Hand-Shaoyin Heart Meridian, Foot-Shaoyin Kidney Meridian, Hand-Jueyin Pericardium Meridian, and Foot-Jueyin Liver Meridian. Ascending, it calms the Heart, settles palpitations, stabilizes the Hun and Po (Soul and Corporeal Soul), and controls rebellious Qi, utilizing its heavy nature to dispel timidity. Descending, it benefits the Liver, fills the Lower Jiao, dissipates Yin Fire, and stops Xiao Ke, utilizing its warm nature to warm the Blood. It is suitable for women with menstrual obstruction, pale blood color, and infertility. Regarding the *Shennong Benjing*'s treatment of women with Wind-Cold in the Uterus leading to ten years of infertility, taking this herb enables conception. This is not merely due to strong tonification but also verifies its ability to dissipate turbid Yin stagnation. If the blood is hot and dark purple, it is contraindicated because of its warm nature. The *Qianjin Fang* states that women seeking beauty should not take Zi Shiying, as it causes the complexion to darken; does this not refer to its property of warming the blood? Therefore, for women suffering from infertility due to Yin Deficiency with Hyperactive Fire, who are unable to secure essence, Zi Shiying is contraindicated.