工作中曾就有关地区所取得的花崗岩人工重砂样經副成分矿物的系統分析和鉴定后,发現其中有烧綠石、釷石、锆英石等稀有元素矿物。进一步研究了花崗岩的特性,初步认为是合烧綠石——細晶石族的蝕变天河石花崗岩,属于铌、钽矿化花崗岩的远景工业矿床类型之一,值得今后工作中予以充分注意。近年以来,在挪威、瑞典以及苏联等地相继均有产出天河石化花崗岩的报导,但在我国还鮮有記載,尤其确定其中合有稀有元素矿物的富集現象尚属初見。为了继續开展工作,仅就目前获得的一些資料,提出报导,以便 During the work, we have systematically analyzed and identified the granulated artificial sand samples obtained from the relevant areas and found that there are some rare element minerals such as pyrochlore, thorium and zircon. The characteristics of granite are further studied. It is initially thought to be an altered greenstone-fine-grained altered Tianhe Stone Granite, belonging to one of the long-term industrial deposit types of niobium and tantalum mineralized granite, which deserves full attention in future work. In recent years, there have been reports of production of Tianhe Petrochemical Granite in Norway, Sweden and the Soviet Union. However, there are still few records in our country. In particular, it is still evident that the enrichment of rare earth elements is common. In order to continue its work, we have reported only on some of the information currently available in order to facilitate it