平。主明目。化铜。铁落。味辛平。主风热恶创。疡疽创痂疥气在皮肤中。铁主坚肌
耐痛。生平泽。
禀阳就燥。气弗交阴。紫尘吹焰。乌液留砧。柔能绕指。坚自安心。山盈渥赭。索广窥
深
。
土宿指南。铁禀太阳之气。而阴气不交。故燥而不洁。易。火就燥。陶弘景曰。铁精出
灶
中如尘。紫色轻者为佳。苏恭曰。铁落是锻家烧铁砧上。锻之皮甲落者。滋液黑于余铁。又
名铁液。刘琨诗。何意百炼刚。化为绕指柔。日华子曰。生铁镇心。安五脏。管子。其上有
赭。其下有铁。诗。赫如渥赭。文心雕龙。才欲窥深。辞务索广。
味辛寒。主身热。利胃。解烦。益精明目。破积聚。去三虫。一名立制石。生山谷。
横理庚庚。移名立制。脉贯峡封。层分土渍。青缕丝明。赤肤肌腻。迭用柔刚。同归一
致。
史记纪。大横庚庚。逸周书。以移其名。苏恭曰。此石夹两石间如石脉。开用之。或在
土中
重叠而生。皮正赤肉白。名医曰。一名肌石。李时珍曰。石肤有软硬二种。理石顺理而微。
硬者长纹细直如丝而明洁。色带微青。与软石膏一类通用。
味辛寒。主身热。四肢寒厥。利小便。通血脉。明目去翳眇。下三虫。杀蛊毒。久服
不饥。一名方石。生山谷。
嵬然卓立。岂恃依凭。纵如排齿。解或方棱。云飞片片。玉琢层层。热中顿解。渊静清
凝。
淮南子。嵬然不动。论语。如有所立卓尔。唐书传。足可依凭。苏恭曰。不附石而生。
端然
独处。状同石膏而浓大。纵理而长纹似马齿。苏颂曰。方解石与长石为一物。李时珍曰。击
之则片片横碎。光莹如云母。名医曰。光而润泽玉色。孟子。不得于君则热中。云笈七签。
本真清凝。嶷然渊静。
【铁落】
味辛，性平。主治风热引起的恶疮、溃疡、疽病、创口结痂以及疥癣等皮肤中的邪气。铁（泛指）能使肌肉坚实，耐受疼痛。生长于沼泽平地。
禀受阳气而趋向干燥，其气不与阴气相交。紫红色的尘埃吹入火焰，黑色的液体留在砧板上。柔软的金属可以绕指弯曲，坚硬的金属自然让人安心。山中堆积着深厚的赭石，绳索宽广以窥探深渊。
土宿星指南针指向北方。铁禀受太阳之气，但阴气不与之相交，所以性质燥烈而不洁净。《易经》说：“火就燥。”陶弘景说：铁精出自灶中，状如灰尘，紫色且轻的为好。苏恭说：铁落是锻造工匠在烧红的铁砧上锻打时，剥落的铁皮甲片。其滋液比普通的铁更黑，又名铁液。刘琨的诗中说：“何意百炼刚，化为绕指柔。”日华子说：生铁能镇心安神，安定五脏。《管子》说：“上面有赭石，下面就有铁。”《诗经》说：“红得像湿润的赭石。”《文心雕龙》说：“才情想要窥探深邃，文辞务必追求广博。”
【理石】
味辛，性寒。主治身体发热，通利胃气，解除烦闷，益精明目，破除积聚，去除三虫。又名立制石。生长在山谷中。
纹理横向排列整齐，改名“立制”。脉理贯穿峡谷封地，层层分开如同泥土浸渍。青色缕丝明亮，红色肌肤细腻。交替使用柔和与刚硬的方法，最终归于一致。
《史记》记载：“大横庚庚。”《逸周书》说：“以此转移其名。”苏恭说：这种石头夹在两层石头之间，像石脉一样，开采时使用。或者生长在土壤中重叠而生。外皮正红，内肉洁白。名医说：又名肌石。李时珍说：石肤有软硬两种。顺理而微细的是软者；坚硬者长纹细直如丝且明洁，颜色带微青，与软石膏一类通用。
【长石】
味辛，性寒。主治身体发热，四肢寒冷厥逆，通利小便，疏通血脉，明目去除翳障，下行排出三虫，杀灭蛊毒。久服不感到饥饿。又名方石。生长在山谷中。
高耸独立，难道依靠什么凭借？纵列如排齿，解理呈方形棱角。片片如云飞动，层层如玉雕琢。体内的郁热顿时解除，渊深宁静清澈凝结。
《淮南子》说：“嵬然不动。”《论语》说：“好像有所站立，卓越不凡。”《唐书·传》说：“足以作为凭借。”苏恭说：不依附石头而生，端然独处。形状同石膏相似但更浓大，纵向纹理和长纹像马齿。苏颂说：方解石与长石是同一种东西。李时珍说：敲击它则片片横向碎裂，光洁莹润像云母。名医说：光泽润泽，玉色。《孟子》说：“如果在君主那里不得志就会心中郁热。”《云笈七签》说：“本真清澈凝结，巍然渊静。”
[Iron Essence]
Neutral in nature. Primarily treats brightening the eyes. Can dissolve copper.
[Iron Filings]
Pungent, neutral in nature. Primarily treats malignant sores, ulcers, carbuncles, wound scabs, and skin diseases such as scabies caused by wind-heat pathogens residing in the skin. Iron generally strengthens muscles and increases pain tolerance. Grows in marshes and flatlands.
It inherits Yang Qi and tends towards dryness; its Qi does not interact with Yin. Purple dust blows into flames, black liquid remains on the anvil. Soft metal can be bent around a finger, while hard metal naturally brings peace of mind. Mountains are filled with rich ochre, ropes stretch wide to probe depths.
The Earthly Branch Star (Zhu Xiu) points south. Iron inherits the Qi of the Sun (Great Yang), yet Yin Qi does not interact with it, hence it is dry and unclean. The *I Ching* states: "Fire follows dryness." Tao Hongjing stated: Iron essence comes from the stove, resembling dust; purple and light ones are superior. Su Gong stated: Iron filings are the scale-like flakes that fall off when blacksmiths hammer iron on a red-hot anvil. Its fluid is darker than other irons, also known as Iron Liquid. Liu Kun's poem says: "Who would have thought that the tempered steel could be transformed into something soft enough to bend around a finger?" Ri Hua Zi stated: Raw iron calms the Heart and settles the Spirit, stabilizing the Five Viscera. *Guanzi* states: "Where there is ochre above, there is iron below." The *Classic of Poetry* states: "Red like wet ochre." *Wenxin Diaolong* states: "Talent seeks to fathom the profound, diction strives for breadth."
[Lizhi Stone / Calcite]
Pungent, cold in nature. Primarily treats body heat, promotes stomach function, relieves vexation, benefits essence and brightens the eyes, breaks up accumulations, and eliminates the Three Worms. Also named Lizhi Shi. Grows in mountain valleys.
The transverse grain is distinct, leading to the name "Lizhi" (Standing Control). Veins run through gorges and seals, layers divide like soil stains. Green threads are bright, red skin is smooth. Alternating soft and hard methods ultimately return to unity.
The *Records of the Grand Historian* records: "Broad and distinct transverse grains." The *Yi Zhou Shu* states: "To transfer its name." Su Gong stated: This stone is sandwiched between two other stones like a vein, used when opened. It may also grow overlapping in the soil. The outer skin is reddish, the inner flesh is white. Famous Physicians stated: Also named Jishi (Muscle Stone). Li Shizhen stated: The stone crust has two types: soft and hard. The soft type has fine, subtle grains following the structure; the hard type has fine, straight, thread-like grains that are clear and clean, with a slightly green color, and is commonly used interchangeably with soft Gypsum Fibrosum.
[Zhangshi Stone / Magnesite]
Pungent, cold in nature. Primarily treats body heat, cold reversal of the four limbs, promotes urination, unblocks blood vessels, brightens the eyes and removes nebulae, expels the Three Worms downward, and kills gu poison. Long-term use prevents hunger. Also named Fangshi. Grows in mountain valleys.
Lofty and standing alone, what reliance does it depend on? Vertical rows like teeth, cleavage forms square edges. Pieces fly like clouds, layers carved like jade. Internal heat is instantly resolved, deep stillness clears and condenses.
The *Huainanzi* states: "Standing firm and unmoving." The *Analects* states: "As if there were something standing, lofty and outstanding." The *Book of Tang - Biographies* states: "Sufficient to rely upon." Su Gong stated: It grows without attaching to other stones, standing solitary and upright. Its shape resembles Gypsum Fibrosum but is thicker and larger, with longitudinal grains and long striations resembling horse teeth. Su Song stated: Fangjie Shi (Magnesite) and Zhangshi are the same substance. Li Shizhen stated: When struck, it shatters transversely into pieces, lustrous and bright like Mica. Famous Physicians stated: Lustrous and moist, jade-colored. Mencius stated: "If one fails to gain favor with the ruler, internal heat arises." *Yunji Qiqian* states: "Original truth is clear and condensed, lofty and deeply still."