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| Occurrence characteristics of scandium in Miaogou iron ore in Danfeng, Shaanxi |
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Received:August 05, 2022
Revised:August 15, 2022
Accepted:August 16, 2022
Published Online:June 25, 2023
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| DOI： |
| KeyWord:The miaogou iron ore deposit; scandium; occurrence characteristics |
| Author | Institution |
| WANG Qiang |
Shaanxi Mineral Resources and Geological Survey,Shaanxi Institute of Geological Survey,Xi''an |
| SONG Gongshe |
Shaanxi Mineral Resources and Geological Survey,Shaanxi Institute of Geological Survey,Xi''an |
| WANG Ning |
Shaanxi Mineral Resources and Geological Survey,Shaanxi Institute of Geological Survey,Xi''an |
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| Abstract: |
| The Miaogou iron deposit in Danfeng, Shaanxi Province, is a low-grade, medium-sized magnetite deposit hosted in Miaogou diopside rock, and the metallogenic type is a late magmatic hydrothermal metasomatic iron deposit. It is found that both the iron ore and the ore-bearing rock body are rich in scandium, with an average scandium content of 151.03×10-6 in the iron ore body and 121.17×10-6 in the ore-bearing rock body, which can be considered for recycling. The petrology, mineralogy and Sc occurrence characteristics of the ore and ore-bearing rocks were studied by means of microscope identification, chemical multi-element analysis, electron probe spectrum analysis and element surface scanning. The results show that there is no independent Sc mineral in the ore, and Sc all occurs in actinolite, epidote, hornblende and magnetite in the form of isomorphism. The proportion of scandium in actinolite is more than 90%. There are no independent scandium minerals in the host rocks. All scandium occurs in the form of isomorphism in diopside, tremolite, magnetite and chlorite, and more than 90% of scandium occurs in diopside. In the comprehensive utilization of iron and scandium, scandium can be recovered from the tailings of iron ore which is mainly composed of actinolite. |
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