永和磷矿氧化带银星石的矿物学特征  

MINERALOGICAL FEATURES OF WAVELLITE FROM THE OXIDIZED ZONE IN YONGHE PHOSPHORUS DEPOSIT, HUNAN PROVINCE

作　　者：张宝贵[1] 张乾[1] 曹裕波[1] 

机构地区：[1]中国科学院地球化学研究所

出　　处：《矿物学报》1990年第1期91-96,共6页Acta Mineralogica Sinica

摘　　要：银星石产于永和磷矿氧化带中。该矿床面型氧化带深度5—30m,线型氧化带深度250m。在氧化带中,除碳氟磷灰石外,银星石是较常见的矿物,与银星石伴生的表生磷矿物还有纤磷钙铝石和磷锶铝矾等。 本文研究了银星石矿物的地质产状、物理化学性质,以及银星石赖于发育的氧化带地质特征,同时指出了研究银星石和磷矿氧化带对表生矿物学、磷矿床找矿勘探均有实际意义。Wavellite is called radial-fibrous-lucinite. Its molecular formula is Al_3 (PO_4)_2(OH,F)_3·5H_2O. It is a hypergene hydrous alumino-parbigite that occurs in the oxidized zone of the phosphorus deposit. In this paper the occurrence, physical properties, chemical composition and rare-earth elements of wavellite are studied,and thus some detailed mineralogical information has been obtained. At the same time, the authors consider that the study of wavellite is of significance not only for hypergene mineralogy, but also to phosphorus ore prospecting.

关 键 词：银星石 碳氟磷灰石 磷酸盐矿物 磷矿床 氧化带 

分 类 号：P578.92[天文地球—矿物学] P619.213[天文地球—地质学]