河南隐山蓝晶石矿床中的放射状蓝晶石集合体

RADIATED AGGREGATION OF KYANITE IN THE YINSHAN KYANITE DEPOSIT FROM HENAN PROVINCE

对隐山蓝晶石矿床中的放射状蓝晶石集合体进行了系统研究,探讨了它的产状、矿物共生组合、形貌特征、物理性质、化学成分、晶体结构和成因。结果表明,这种集合体中蓝晶石含量高,色白,耐火度高,热学性能好。它的形成与区域变质、动力变质和气成热液等作用的依次叠加有关,而由放射状蓝晶石集合体构成的富矿石则主要与气成热液作用有关。

This is a pilot study on the radiated aggregation of kyanite in the Yinshan kyanite deposit.Major contents are concentrated on its occurrence, associated minerals, morphological characteristics,physical properties, crystal structure and origin. It is shown that the aggregation is rich in kyanite andpoor in impurity elements. The aggregation has white color and high fire-resistant and good heatedproperties, therefore it is one of the rare first-grade rich-ore of kyanite. The origin of Yinshan kyanitedeposit is related to regional metamorphism and kinetic metamorphism and pneumatogenic hydrother-mal process, whereas rich-ore consisted of radiated kyanite aggregation is related to pneumatogenic hy-drothermal process.