《本经》名白石
咸温，无毒。色白，揉之如绵不脆者真，质坚脆者即伪。 过，烧酒淬七次，杵细，水
飞用。
《本经》主崩中漏下，破子脏中血，症瘕结气，寒热腹痛，无子，阴痿不起，补不足。
发明 阳起石乃云母之根，右肾命门药，下焦虚寒者宜之。黑锡丹用此，正以补命
门阳
气不足也。《本经》治崩中漏下，阳衰不能统摄阴血也。又言破子脏中血，症瘕结气。是
指阴邪畜积而言。用阳起石之咸温，散其所结，则子脏安和，孕自成矣。阴虚火旺者忌用，
以其性专助阳也。
《本经》名玄石，俗名吸铁石
辛咸微寒，无毒。入药 过，醋淬七次，研细
，水飞用。
《本经》主周痹风湿，肢节中痛，不可持物，洗洗酸消，除大热烦满及耳聋。
发明 磁石为铁之母，肾与命门药也，惟其磁，故能引铁。《千金》磁朱丸治阴虚龙火
上炎，耳鸣嘈嘈，肾虚瞳神散大，盖磁石入肾，镇养真精，使神水不外移。朱砂入心，镇养
心血，使邪火不上侵耳目，皆受荫矣。《本经》主周痹风湿，肢节中痛，洗洗酸消，取辛以
通痹而祛散之，重以去怯而镇固之，则阴邪退听，而肢节安和，耳目精明，大热烦满自除矣
。《济生方》治肾虚耳聋，以磁石豆大一块，同 穿山甲末，绵裹塞耳中，口含生铁一块，
觉耳中如风雨声即通。
*Ben Jing* (Shennong's Classic of Materia Medica) calls it Bai Shi (White Stone).
Salty and warm, non-toxic. The genuine product is white in color and feels soft like cotton when rubbed without being brittle; those that are hard and brittle are fake. For medicinal use, quench it seven times in distilled liquor, pound it into fine powder, and process it by water flotation (shui fei).
*Ben Jing* states it treats metrorrhagia and leukorrhea with bleeding (beng zhong lou xia), breaks up blood stasis in the uterus, dissipates masses (zheng jia) and qi stagnation, treats abdominal pain due to alternating cold and heat, infertility, impotence, and tonifies deficiencies.
[Invention] Yang Qi Shi (Calcium Silicate Mineral) is the root of Muscovite (Yun Mu). It is a herb for the Right Kidney and Ming Men (Gate of Vitality) and is suitable for patients with deficiency-cold in the lower jiao. It is used in Hei Xi Dan (Black Tin Pill) precisely to tonify insufficient yang qi of the Ming Men. *Ben Jing* treats metrorrhagia because yang qi is deficient and unable to control yin blood. It also mentions breaking up blood stasis in the uterus and dissipating masses and qi stagnation, which refers to the accumulation of yin pathogens. Using the salty and warm nature of Yang Qi Shi can disperse the accumulated pathogen, thereby calming and harmonizing the uterus, allowing conception to occur naturally. It is contraindicated in cases of yin deficiency with hyperactive fire because its nature specifically assists yang.
*Ben Jing* calls it Xuan Shi (Black Stone), commonly known as Magnetite (Xi Tie Shi).
Pungent and salty, slightly cold, non-toxic. For medicinal use, quench it seven times in vinegar, grind it into fine powder, and process it by water flotation.
*Ben Jing* states it treats generalized bi syndrome (zhou bi) and wind-dampness, pain in the limbs and joints, inability to hold objects, a sensation of cold and soreness/weakness, removes severe heat, fullness, and deafness.
[Invention] Ci Shi (Magnetite) is the mother of iron and is a herb for the Kidney and Ming Men. Because of its magnetism, it can attract iron. Ci Zhu Wan (Magnetite and Cinnabar Pill) from *Qian Jin Fang* treats upward flaming of dragon fire due to yin deficiency, characterized by roaring tinnitus and dilated pupils due to kidney deficiency. This is because Ci Shi enters the kidney, stabilizes and nourishes true essence, preventing the divine fluid from leaking outward. Zhu Sha (Cinnabar) enters the heart, stabilizes and nourishes heart blood, preventing evil fire from invading the ears and eyes, thus both benefiting from protection. *Ben Jing* treats generalized bi syndrome, wind-dampness, limb joint pain, and cold/sore sensations by utilizing its pungency to unblock bi and disperse pathogens, and its heaviness to remove timidity and stabilize the spirit. Consequently, yin pathogens retreat, limbs and joints become harmonious, ears and eyes become clear, and severe heat and fullness are naturally eliminated. *Ji Sheng Fang* treats kidney deficiency deafness by taking a bean-sized piece of Ci Shi, mixing it with powder of Pangolin Scales (Chuan Shan Jia), wrapping it in silk, inserting it into the ear, and holding a piece of raw iron in the mouth. When a sound like wind and rain is felt in the ear, hearing will be restored.