（宋《嘉 》）
【释名】时珍曰∶性寒如井泉，故名。
【集解】禹锡曰∶井泉石，近道处处有之，以出饶阳郡者为胜。生田野中间，穿地深丈
余得之。形如土色，圆方长短大小不等，内实而外圆，重重相叠，采无时。又一种如姜石者，
时人多指为井泉石，非是。
颂曰∶深州城西二十里，剧家村出之。
【修治】禹锡曰∶凡用，细研水飞过。不尔，令人淋。
【气味】甘，大寒，无毒。
【主治】诸热，解心脏热结，热嗽，小儿热疳，雀目青盲，眼赤肿痛，消肿毒。得决明、
菊花，疗小儿眼疳生翳膜。得大黄、栀子，治眼睑肿赤（《嘉 》）。
【附方】新四。
膀胱热闭，小便不快∶井泉石、海金沙、车前子、滑石各一两。为末。每服二钱，蜜汤
下。（《圣济录》）
风毒赤目∶井泉石半两，井中苔（焙）、谷精草一两，豉（焙）一合。为末。每服二钱，
空心井华水服。（《圣济录》）
产后搐搦，俗名鸡爪风。舒筋散∶用井泉石四两（另研），天麻（酒浸）、木香各一两，
人参、川芎、官桂、丁香各半两。为末。每服三钱，大豆淋酒调下，出汗即愈。（《宣明方》）
痤痱瘙痒∶井泉石（生）三两，寒水石（ ）四两，脑子半钱。为末扑之。（《圣济录》）
(Sourced from the Song Dynasty *Jiayou Bencao*)
[Names] Li Shizhen stated: Its nature is cold like well water and spring water, hence the name.
[Collection and Explanation] Su Song stated: Jingquanshi (Well Spring Stone) is found everywhere near roadsides, with those from Raoyang Commandery being superior. It grows in the middle of fields; one must dig more than a zhang deep to obtain it. Its shape resembles earth-colored soil; it varies in form—round, square, long, short, large, or small—and size. The interior is solid while the exterior is round, layered upon layer. It can be harvested at any time. There is another type resembling Jiangshi (Ginger Stone); many people in later times mistakenly identify this as Jingquanshi, which is incorrect.
Su Song stated: It is produced in Jujia Village, twenty li west of the city of Shenzhou.
[Preparation] Su Song stated: When used, it must be finely ground and processed by "water flying" (levigation). Otherwise, it may cause Lin syndrome (dysuria).
[Flavor and Properties] Sweet, extremely cold, non-toxic.
[Indications] Treats various heat conditions; resolves heat accumulation in the Heart; treats heat cough; treats pediatric Re Gan (heat-related malnutrition due to accumulation); treats Que Mu (night blindness) and Qing Mang (diminished vision or blindness); treats red, swollen, and painful eyes; reduces swelling and detoxifies. Combined with Juemingzi (Cassiae Semen) and Juhua (Chrysanthemi Flos), it treats pediatric eye Gan with pterygium formation. Combined with Dahuang (Rhei Radix et Rhizoma) and Zhizi (Gardeniae Fructus), it treats red and swollen eyelids (*Jiayou Bencao*).
[Attached Prescriptions] Four new prescriptions.
Bladder Heat Obstruction, difficult urination: Jingquanshi (Well Spring Stone), Haijinsha (Lygodii Spora), Cheqianzi (Plantaginis Semen), and Huashi (Talcum) each 1 liang. Grind into powder. Take 2 qian per dose, administered with honey water. (*Shengji Lu*)
Wind-Toxin Red Eyes: Jingquanshi (Well Spring Stone) 0.5 liang, Jingzhongtai (Baked moss from wells), Gujingcao (Essential Grain Grass) 1 liang, Chi (Baked fermented soybean paste) 1 he. Grind into powder. Take 2 qian per dose, administered on an empty stomach with Jinghua Shui (well water drawn at dawn). (*Shengji Lu*)
Postpartum Convulsions, commonly known as Chicken Claw Wind. Shujin San (Sinew-Relaxing Powder): Use Jingquanshi (Well Spring Stone) 4 liang (ground separately), Tianma (Gastrodiae Rhizoma soaked in wine), Muxiang (Aucklandiae Radix) each 1 liang, Renshen (Ginseng Radix), Chuanxiong (Ligustici Chuanxiong Rhizoma), Guanzi Gui (Cinnamomi Ramulus), Dingxiang (Caryophylli Flos) each 0.5 liang. Grind into powder. Take 3 qian per dose, mixed with Da Dou Lin Jiu (wine infused with soybeans). Sweating indicates recovery. (*Xuanming Fang*)
Acne and Prickly Heat Itching: Jingquanshi (Well Spring Stone, raw) 3 liang, Hanshuishi (Calcitum, calcined) 4 liang, Naozi (Borneolum Syntheticum) 0.5 qian. Grind into powder and dust onto the affected area. (*Shengji Lu*)