\r紫石英\ph15.bmp\r，生泰山山谷，今岭南及会稽山中亦有之。谨按《吴普本草》云∶
紫石英，生泰山及
会稽，欲令如削，紫色达头如 蒲者。陶隐居云∶泰山石，色重澈下有根，最佳。会稽石，
形色如石榴子，最下。先时并杂用，今惟用泰山石，余处者可作丸酒饵。又按《岭表录异》
云
暖而无毒，比北中白石英，其力倍矣。然则泰山、会稽、岭南紫石英用之亦久。《乳石论》
无单服紫石者，惟五石散则通用之。张文仲有镇心单服紫石煮水法。胡洽及《千金方》则多
杂诸药同用。今方家用者，惟治疗妇人及治心病药时有使者。
\r白石英\ph16.bmp\r，生华阴山谷及泰山。陶隐居以新安出者佳，苏恭以泽州者为胜，
今亦泽州出焉。大
抵长而白泽，明澈有光，六面如削者可用，长五、六寸者弥佳。其黄色如金在端者，名黄石
英；赤端白后者，名赤石英；青端赤后者，名青石英；黑泽而有光者，名黑石英。二月采，
亦云无时。古人服食，惟白石英为重，紫石英但入五石散。其黄、赤、青、黑四种，《本经
》虽有名，而方家都不见用者。故《乳石论》以钟乳为乳，以白石英为石，是六英之贵者，
惟白石也。又曰乳者阳中之阴，石者阴中之阳，故阳生十一月后甲子服乳，阴生五月后甲子
服石。然而相反畏恶，动则为害不浅。故乳石之发，方治虽多，而罕有能济者，诚不可轻饵
也。
紫石英，生长在泰山的山谷中，如今岭南和会稽的山中也产有。谨按《吴普本草》记载：紫石英，产于泰山及会稽，要求像被削过一样平整，紫色通透直达顶端，形状像蒲草茎的。陶隐居说：泰山的石头，颜色深沉清澈且有根脚，品质最佳。会稽的石头，形状颜色像石榴籽，品质最差。以前两者混杂使用，现在只用泰山的石头，其他地方的石头可以用来制作丸剂或酒剂服用。又按《岭表录异》记载：紫石英性暖而无毒，比北方的白石英（白色石英类药材），药力加倍。既然如此，那么泰山、会稽、岭南产的紫石英使用也已经很久了。《乳石论》中没有单独服用紫石英的记载，只有五石散（一种由五种矿物药组成的方剂）通用它。张文仲有单独服用紫石英煮水的方法。胡洽及《千金方》则多将紫石英与其他药物混合使用。现在的方家使用紫石英，只用于治疗妇女疾病和治疗心脏病的药物中偶尔使用。
白石英，生长在华山阴面的山谷及泰山。陶隐居认为新安出产的品质好，苏恭认为泽州出产的更胜一筹，现在也是泽州出产。大体上以长而洁白润泽，明澈有光，六个面都像被削过一样的可以使用，长度五、六寸的更好。其黄色如金在顶端的，名叫黄石英；红色顶端白色底部的，名叫赤石英；青色顶端红色底部的，名叫青石英；黑色润泽而有光的，名叫黑石英。二月采收，也有说随时可采。古人服食养生，只重视白石英，紫石英只用于五石散。那黄、赤、青、黑四种，《本经》（《神农本草经》）中虽然有名目，但方家都不见使用。所以《乳石论》把钟乳石称为“乳”，把白石英称为“石”，这六种石英中珍贵的，只有白石（白石英）。又说乳是阳中之阴，石是阴中之阳，所以在十一月后甲子日服用乳，五月后甲子日服用石。然而它们性质相反相畏，一旦引发不良反应，造成的危害不浅。所以乳石病发作时，虽然治疗方法很多，但很少能治愈的，确实不可轻易服用。
Zi Shiqing (Purple Quartz), grows in the valleys of Mount Tai. Currently, it is also found in the mountains of Lingnan and Kuaiji. According to *Wu Pu Ben Cao* (*Pharmacopoeia by Wu Pu*): Zi Shiqing is produced in Mount Tai and Kuaiji; it should be smooth as if cut, with purple color penetrating through to the top, resembling the stem of a cattail. Tao Hongjing stated: Stones from Mount Tai, which are deep-colored, clear, and have roots, are of the best quality. Stones from Kuaiji, which resemble pomegranate seeds in shape and color, are of the lowest quality. Previously, they were used interchangeably, but now only stones from Mount Tai are used; those from other places can be made into pills or wine tonics. Furthermore, according to *Ling Biao Lu Yi*: It is warm in nature and non-toxic; its efficacy is double that of Bai Shiqing (White Quartz) from the north. Thus, Zi Shiqing from Mount Tai, Kuaiji, and Lingnan has been used for a long time. *Ru Shi Lun* (*Treatise on Milk Stones*) does not record the single use of Zi Shiqing; it is commonly used only in Wu Shi San (Five Minerals Powder). Zhang Wenzhong had a method for boiling water with single-use Zi Shiqing. Hu Qian and *Qian Jin Fang* (*Essential Prescriptions Worth a Thousand Gold*) mostly mix it with other herbs. Currently, physicians use it only occasionally in prescriptions for treating women's diseases and heart conditions.
Bai Shiqing (White Quartz), grows in the valleys of Mount Hua (Huashan) and Mount Tai. Tao Hongjing considered those from Xin'an to be superior; Su Gong considered those from Zezhou to be better; currently, those from Zezhou are produced. Generally, those that are long, white, lustrous, clear, shiny, and have six faces as if cut are usable; those five to six cun in length are even better. Those with yellow ends like gold are named Huang Shiqing (Yellow Quartz); those with red ends and white bases are named Chi Shiqing (Red Quartz); those with green ends and red bases are named Qing Shiqing (Green Quartz); those that are black, lustrous, and shiny are named Hei Shiqing (Black Quartz). Harvested in February, though some say it can be harvested at any time. In ancient times, people taking mineral tonics valued Bai Shiqing highly, while Zi Shiqing was used only in Wu Shi San. Although the four types—yellow, red, green, and black—are listed in *Ben Jing* (*Shennong Bencao Jing*), physicians rarely use them. Therefore, *Ru Shi Lun* refers to Zhong Ru Shi (Stalactite) as "Ru" (Milk) and Bai Shiqing as "Shi" (Stone); among the six types of quartz, only the white stone is precious. It further states that "Ru" is Yin within Yang, and "Shi" is Yang within Yin. Therefore, one takes "Ru" after the Jiazi day following November (when Yang begins to grow), and takes "Shi" after the Jiazi day following May (when Yin begins to grow). However, they have contrary and antagonistic properties; if adverse reactions occur, the harm is significant. Thus, when Ru Shi disease manifests, although there are many treatments, few succeed. Indeed, one must not take them lightly.