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以往陕西省地质局某队曾对陕西境内秦岭东段某地稀有金属伟晶岩做了大量的工作,该地二云母型稀有金属花岗伟晶岩的研究尤为详尽,划分了伟晶岩体在演化过程中时间阶段性和空间上的分带性,其中在锂矿体中又分出了石英—叶钠长石—锂云母交代体。经队初步踏勘了解和有关部门鉴定,石英—叶钠长石—锂云母交代体,具有一定的经济价值可以作为玉石矿(丁香紫)而为工艺美术部门所利用。丁香紫产于古生代某地杂岩的变辉长岩之中。矿体呈团块状、透镜状、条带状产出,宽
In the past, a certain team of Bureau of Geological Bureau of Shaanxi Province had done a great deal of work on the pegmatite, a rare metal in a certain area of Qinling Mountains in Shaanxi Province. The research on the two mica-type rare-metal granitic pegmatites in this area is especially exhaustive, In the evolution process of time-stage and spatial zonation, which in the lithium ore body is divided into quartz - leaf albite - lithium mica body. The initial exploration team to understand and identify relevant departments, quartz - leaf albite - lithium mica replacement, has some economic value as jade ore (lilac) for the arts and crafts departments. Lilac violet produced in the Paleozoic metamorphic rocks in some of the rocks. Ore body was massive, lenticular, strip-shaped output, wide