| 2. | For thirty years , the institute has been engaged in geological prospecting for alunite , illite , pyrite , bentonite , fluorite , phosphate rock , sericite etc , has completed and submitted more than 70 geological reports
该院对明矾石、伊利石、硫铁矿、膨润土、萤石、磷矿、绢云母等矿进行了综合找矿，综合评价，先后提交各类地质报告70余份。 |
