味甘，寒，无毒。主咳逆，寒热烦满，下利赤白，大热，疗小腹痛结烦疼。《药性论》
云∶君。味咸。主治崩中。日华子云∶治邪气及骨节疼，四肢不仁，痔 等疾。又治妇人带
下，产后烦躁。牡丹为之使。张仲景∶治伤寒下痢不止，心下痞硬，利在下焦者，赤石脂禹
余粮汤主之。赤石脂、禹余粮各一片，并碎之，以水六升煮取二升，去滓分再服。
味甘，平，无毒。主咳逆上气，症瘕，血闭，漏下，除邪气，肢节不利，大饱绝力身重。
雷公云∶太一余粮看即如石，轻敲便碎，可如粉也，兼重重如叶子雌黄，此能益脾安脏气。
味甘，平，无毒。主金疮，折伤，肉伤，止痛，生肌肉。日华子云∶无毒。今云∶
寒。消肿毒痈疣。出∶大食国。生于石上，状如黑石炭，番人以油炼如 石，嚼之如
经》曰∶岭南人云，有石无名异，绝难得，有草无名异，彼人不甚贵重，岂《本经
石而今所有者为草乎。用时以醋磨，涂敷所苦处。
凉，无毒。治喉痹， 牙，口疮及恶疮，疥癣。酿鲫鱼烧灰和服，疗肠风泻血。《集
方》∶治小儿疳气不可疗，神效丹，绿矾用火 通赤，以酽醋淬过，如此三次，细枣肉和
绿豆大。温水下，日三服。
解一切药毒、瘴疫、热闷头痛。生南海，胡人采得之。无斑点有金星，磨成乳汁者
又有豆斑石，虽亦解毒，功力不及。复有鄂绿，有文理，磨铁成铜色，人多以此为之
也。凡欲验真者，以水磨，点鸡冠，热血当化成水是也。
禹余粮：味甘，性寒，无毒。主治咳嗽气逆，寒热交替导致的烦闷胀满，痢疾下利赤白脓血，高热，以及治疗小腹部结聚疼痛。《药性论》记载：禹余粮为君药。味咸。主治崩漏（非经期阴道大量出血）。日华子记载：治疗邪气及骨节疼痛，四肢麻木不仁，痔疮等疾病。又治疗妇女带下病，产后烦躁不安。牡丹是它的使药。张仲景记载：治疗伤寒导致痢疾不止，心下部痞塞硬满，病势向下焦发展的情况，用赤石脂禹余粮汤主治。赤石脂、禹余粮各一片，捣碎，用水六升煮取二升，去渣分两次服用。
禹余粮：味甘，性平，无毒。主治咳嗽气逆上冲，症瘕（腹内结块），经血闭止，漏下（非经期少量持续出血），祛除邪气，肢体关节不利，饱食后极度乏力身体沉重。雷公记载：太一余粮看起来像石头，轻敲即碎，可磨成粉状，兼有层层如叶子般的雌黄色泽，此药能补益脾气，安定脏腑之气。
禹余粮：味甘，性平，无毒。主治金疮（金属利器造成的创伤），骨折损伤，皮肉损伤，止痛，促进肌肉生长。日华子记载：无毒。现今说法认为其性寒。能消肿毒痈疽疣赘。产地：大食国。生长在石头上，形状像黑炭，番人用油炼制后呈石块状，咀嚼时口感像……《本经》曰：岭南人云，有一种石头叫无名异，极其难得；还有一种草也叫无名异，当地人并不十分贵重，难道《本经》所说的石头就是现在的草吗？使用时用醋研磨，涂抹敷于患处。
禹余粮：性凉，无毒。治疗喉痹（咽喉肿痛闭塞），龋牙，口疮及恶疮，疥癣。将鲫鱼酿入禹余粮烧成灰混合服用，治疗肠风泻血（便前出血或便血如溅）。《集方》记载：治疗小儿疳积气不可治愈的情况，神效丹，绿矾用火煅烧至通红，用浓醋淬炼，如此三次，与细枣肉混合制成绿豆大小的丸剂。温水送服，每日三次。
禹余粮：解一切药物中毒、瘴气疫病、热闷头痛。产于南海，胡人采集得到。没有斑点且带有金星者最佳，磨成乳汁状使用。又有豆斑石，虽然也能解毒，但功力不及前者。还有鄂绿（一种矿物），有纹理，磨铁呈铜色，人们多以此冒充真品。凡是想要验证真伪的，用水研磨，点在鸡冠上，热血应当化成水状才是真的。
Yu Yuliang (Hematitum): Sweet in taste, cold in nature, non-toxic. It primarily treats cough with reverse flow of Qi (ke ni), alternating chills and fever accompanied by vexation and fullness, dysentery with red and white discharge, high fever, and alleviates painful accumulation in the lower abdomen. *Yao Xing Lun* states: It serves as the Sovereign herb. Salty in taste. It primarily treats metrorrhagia (beng zhong). Ri Huazi states: It treats pathogenic factors and pain in bone joints, numbness and lack of sensation in the four limbs, and diseases such as hemorrhoids. It also treats leukorrhea in women and postpartum restlessness. Peony (*Mudan Pi*) is its guiding herb. Zhang Zhongjing states: It treats persistent diarrhea due to cold damage, epigastric hardness and fullness, where the pathology is located in the lower jiao; this is treated with Chishizhi Yu Yuliang Tang (Red Halloysite and Hematitum Decoction). Red Halloysite (*Chishizhi*) and Hematitum (*Yu Yuliang*), each one slice, are crushed and boiled in six sheng of water until two sheng remain. The dregs are removed, and the decoction is divided into two doses for administration.
Yu Yuliang (Hematitum): Sweet in taste, neutral in nature, non-toxic. It primarily treats cough with upward rushing of Qi, zheng zha (abdominal masses), amenorrhea, metrorrhagia (lou xia), dispels pathogenic factors, improves mobility of limbs and joints, and alleviates extreme fatigue and heaviness of the body after overeating. Lei Gong states: Taiyi Yuliang looks like stone, breaks easily when tapped lightly, and can be ground into powder; it resembles layered leaves of realgar, and this herb can tonify Spleen Qi and stabilize Zang-Fu Qi.
Yu Yuliang (Hematitum): Sweet in taste, neutral in nature, non-toxic. It primarily treats metal wounds, fractures, soft tissue injuries, relieves pain, and promotes muscle regeneration. Ri Huazi states: Non-toxic. Current texts suggest it is cold in nature. It reduces swelling and detoxifies carbuncles and warts. Origin: Da Shi Country (Arabian Peninsula). It grows on rocks, resembling black charcoal. Barbarians refine it with oil into a stone-like form; chewing it feels like... *Ben Jing* states: People in Lingnan say there is a stone called Wuming Yi (Baryte), which is extremely rare, and a grass also called Wuming Yi, which locals do not value highly. Could the "stone" mentioned in *Ben Jing* actually refer to this grass? When used, grind it with vinegar and apply topically to the affected area.
Yu Yuliang (Hematitum): Cool in nature, non-toxic. Treats throat obstruction (hou bi), dental caries, mouth ulcers, malignant sores, scabies, and tinea. Grind green crucian carp mixed with Yu Yuliang ash and administer orally to treat intestinal wind bleeding (chang feng xie xue). *Ji Fang* states: For untreatable pediatric malnutrition qi syndrome (gan qi), Shenxiao Dan is effective. Calcined Luofan (Green Vitriol) until red hot, quenched three times in strong vinegar, then mixed with fine date pulp to form pills the size of mung beans. Administer with warm water, three times daily.
Yu Yuliang (Hematitum): Cold in nature, non-toxic. Resolves phlegm, treats thirst, and moistens Lung and Heart.
Yu Yuliang (Hematitum): Detoxifies all herbal poisons, miasma epidemics, and headaches caused by heat and stagnation. Produced in the South Sea, collected by Hu people. The best quality has no spots but contains golden stars; grinding it yields a milky liquid. There is also Doubanshi (Bean-spotted Stone); although it also detoxifies, its efficacy is inferior. There is also Elv (a mineral variety) with visible grain patterns, which turns iron copper-colored when ground; people often use this as a substitute. To verify authenticity, grind with water and apply to a rooster's comb; if the blood turns into liquid water, it is genuine.