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有一种漂亮的矿物叫作磷氯铅矿,这种矿物在工业上并无太大用途,可是作为矿物标本和晶体观赏石,它却有着很大的名气。美国西部矿业城图森,每年都有要举办一届全球最大规模的珠宝、化石和矿物博览会,每届博览会要评选一种最受人们喜爱而且具有一定科学经济意义的矿物作为该届的主题矿物。磷氯铅矿被选为1992年第38届图森博览会的主题矿物,由此可见这种矿物在收藏的广泛性、矿物科学性以及经济价值等方面具有独特之处。磷氯铅矿是次生磷酸盐矿物,化学分子式 Pb_5(PO_4)_3Cl,产于铅锌
There is a beautiful mineral known as chlorphlogopite, which is not industrially very useful, but has great fame as a mineral specimen and crystal ornamental stone. Every year, Tucson, the western mining city of the United States, has to host one of the largest expositions of jewelry, fossil and minerals in the world. Each exposition selects one of the most popular and scientific and economic minerals as its theme mineral . Phosphorubungite was chosen as the theme mineral for the 38th Tucson Exposition in 1992. This shows the uniqueness of this mineral in its wide range of collections, mineral science and economic value. Phlogocite is a secondary phosphate mineral, chemical formula Pb_5 (PO_4) _3Cl, produced in lead and zinc