What material is flint made of

Little friends who have some research on lighters may see something called flint in lighters, but many little friends may not know what material flint is made of. Let's have a look. The raw material of flint refers to both artificial alloy flint and mineral flint. Its main component is cerium iron alloy made of cerium and lanthanum. Introduction to flint generally speaking, Flint often appears on lighters. In addition to general flint, there are also flints specially used to take fire. The principle that flint can ignite is that cerium and lanthanum are easy to burn metals. The alloy made of iron is hard and brittle. Mars will appear when impacted, which is easy to ignite successfully. Flint is the main type of flint, and flint can be divided into layered flint and nodular flint. Layered flint mostly coexists with clay layers containing phosphorus and manganese, and exists in layers. The thickness of single layer is small, but the total thickness can reach hundreds of meters, which is different from massive and oolitic; Nodular chert mostly occurs in limestone, with spherical, egg, rod, disk, gourd and irregular nuclei, generally only 5-15cm, and the largest can be up to 1-2m. （HuoDanShiShenMeCaiLiaoZuoDe）