云南会泽超大型铅锌矿床发现锗的独立矿物

DISCOVERY OF THE INDEPENDENT MINERAL OF GERMANIUM IN THE HUIZE LARGE-SCALE Pb-Zn DEPOSIT,YUNNAN PROVINCE,CHINA

在对云南会泽超大型铅锌矿床原生矿石电子探针观察分析过程中,发现1种锗的独立矿物,其粒径约80μm,形态不规则,与黄铁矿、闪锌矿和方解石共生,波谱分析主要由Ge和Al组成(GeO239.84%和Al2O349.96%),同时含少量F和Si(F2O5.92%和SiO23.52%)。从成分上看,该矿物与目前已报道的含Al的独立锗矿物明显不同,可能为1种新的矿物,有待更全面、深入的矿物学研究。

In the processes of electron probe observing and analyzing the primary ore in the Huize largescale Pb-Zn deposit, Yunnan Province, China, we discovered one independent mineral of germanium. This mineral is characterized by grain size about 80μm, irregular shape, and paragenesis with pyrite, sphalerite and calcite. The wave spectrum analytical result showed that this mineral is composed mainly of Ge and Al （ GeO2 and Al2O3 are 39. 84wt% and 49. 96 wt%, respectively）, and subordinately of F and Si （ F20 and SiO2 are 5.92 wt% and 3.52 wt%, respectively）. As viewed from its composition, this mineral is obviously different from the Al-bearing independent minerals of germanium which had been reported. We suggest that this mineral maybe one new mineral, but requires further mineralogical study.