为重要和常见的铁矿石矿物。钛磁铁矿、钒钛磁铁矿同时亦为钛、钒的重要矿石矿物。富含 Ti、V、Ni、Co等元素时可综合利用。药用磁铁矿名磁石，别名玄石、慈石、灵磁石、吸铁石、 吸针石。功效：潜阳安神；聪耳明目；纳气平喘。 磁不但在现代医学上有着重要的应用，如核 磁共振成像技术，常称磁共振CT(计算机化层析术)，以及心磁图和脑磁图的应用，而且还有着悠 久的历史。在西汉的《史记》(约公元前90年)书中的“仓公传”便讲到齐王侍医利用5种矿物药( 称为五石)治病。这5种矿物药是指磁石(Fe3O4)、丹砂(HgS)、雄黄(As2O3)、矾石(硫酸钾铝)和 曾青(2cuCo3)。随后历代都有应用磁石治病的记载。例如，在东汉的《神农本草》(约公元2世纪 )药书中便讲到利用味道辛寒的慈(磁)石治疗风湿、肢节痛、除热和耳聋等疾病，南北朝陶弘景 著的《名医别录》(公元510年)医药书中讲到磁石可以养肾脏，强骨气，通关节，消痛肿等。唐 代著名医药学家孙思邈著的《千金方》(公元652年)药书中还讲到用磁石等制成的蜜丸，如经常 服用可以对眼力有益。北宋何希影著的《圣惠方》(公元1046年)医药书中又讲到磁石可以医治儿 童误吞针的伤害，这就是把枣核大的磁石，磨光钻孔穿上丝线后投入喉内，便可以把误吞的针吸 出来。

As the most important and most common iron ore minerals. Titanium magnetite, vanadium and titanium magnetite while also titanium and vanadium important ore mineral. Rich in Ti, V, Ni, Co and other elements can be integrated use. Medicinal magnetite name magnet, alias black stone, CI Shi, Ling magnet, magnet, stone needle. Efficacy: Yang Anshen; Cong ears eyesight; Qi and relieve asthma. Magnetic not only has an important application in modern medicine, such as nuclear magnetic resonance imaging technology, often called magnetic resonance CT (computerized tomography), as well as the application of the core and the magnetic map, but also has a long history. In the Western Han Dynasty "historical records" (about 90 BC) book "Cang Gong biography" and talked about kingqi paternity medicine using five kinds of mineral medicine (known for five stone) treatment. These 5 kinds of mineral medicine refers to the magnet (Fe3O4), cinnabar (HgS) and realgar (As2O3) or alum (aluminum potassium sulfate) and green (2cuCo3). The subsequent dynasties have applied magnetic treatment records. For example, in the Eastern Han Dynasty, "Shennong Materia Medica (ca. 2nd century AD) medicine books then talked about the taste acrid cold Tzu Chi (magnetic) stone treatment of rheumatism, pain of the limbs and joints, in addition to heat and deafness and other diseases, northern and Southern Dynasties Hongjing with the Mingyi bielu" (510 BC) medical books mentioned in the magnet can raise kidney, strong integrity, through joints, eliminate the pain and swelling. Tang Dynasty famous doctor Sun Simiao with "Qian Jin Fang" (652 AD) Chinese medicine book says with magnet made of honey pill, such as frequent use can be beneficial to eyesight. In the Northern Song Dynasty He Xiying with the "San Hui Fang" (1046 BC) in the medicine book spoke magnet can cure children mistakenly swallow the needle damage, this is the big jujube magnet, polished drill wear silk thread into the throat, can suck out swallowed the needle.