hornstone meaning in English

角岩
角状岩
牛角石
燧石

There are intensive structural and magmatic hydrothermal movement with obvious zonal surface shape alterations , which are demonstrated by silicified function , sericitization , potassium , epidotization , hornstone , etc . the ore structural fabric mainly behaves in form of filling action with minerals such as pyrite , chalcopyrite , salenite , blende and electrum , which typomorphic feature shows a hypothermal pattern of metallogeny
呈面型蚀变，分带特征明显。矿区内矿体规模巨大，矿石组构主要为以充填交代作用为主，矿石矿物主要为黄铁矿、黄铜矿、闪锌矿、方铅矿和银金矿。而且矿物的标型特征显示了低温成矿的特点。