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桑植县油坊萤石矿位于扬子准地台边缘,是一典型的小而富的低温热液充填型矿床。矿体主要由压扭性断裂控制,与围岩含Ca质有关,围岩界限清晰。矿体呈透镜脉状、似层状或扁豆状,矿石质量好,Ca F2含量高。该矿床广泛存在围岩蚀变作用,表现有硅化、绢云母化、黄铁矿化、碳酸盐化。该类型萤石矿床有明显的找矿标志。
Fluorite mine in Sangzhi County oil mill is located at the edge of the Yangtze Prospective Platform, is a typical small and rich low-temperature hydrothermal filling deposits. The ore body is mainly controlled by the compressive-torsional fracture, which is related to the Ca-bearing surrounding rock, and the boundary of the surrounding rock is clear. The ore body is lenticular lens, like stratified or lentil, ore quality is good, Ca F2 content is high. There are extensive wall rock alteration in this deposit, which is characterized by silicification, sericitization, pyrite mineralization and carbonation. This type of fluorite deposit has obvious prospecting signs.