河南南阳隐山含锶磷钙铝矾矿物学特征

Mineralogical Characteristics of Sr-bearing Woodhouseite from Yinshan in Nangyang,Henan

在河南省南阳变质岩地区的蓝晶石矿床中发现了极为少见的矿物——含锶磷钙铝矾。其主要化学成分为(%):Al_2O_332.71、CaO7.47、SrO5.94、P_2O_516.78、SO_319.42。该矿物的 X 射线衍射特征和晶胞参数接近于磷钙铝矾,热分析和红外光谱曲线同目前资料仅有的磷锶铝矾相类似,故定名为含锶磷钙铝矾。

Sr-bearing woodhouseite,which is a rare mineral,was discovervcd in a kyanite deposit in the Nanyang metamorphic area of Henan.In chemical composition it mainly contains 32.71% Al_2O_3,7.47% CaO,5.94% SrO,16.78% P_2O_5,and 19.42% SO_3.The X-ray diffraction characteristics and lattice parameter of this mineral are close to those of woodhouseite,and its thermoanalyses and infrared spectrum curves are similar to those of svanbergite,So,this mineral is named Sr-bearing woodhouseite.