WEN Xinyu ¹, HUANG Fei ¹, ZHANG Zhibin¹ , CHANG Zhuoya ¹, WANG Guibo ², MA Chaoping², ZHANG Changqing ³

(1. School of Resources & Civil Engineering, Northeastern University, Shenyang 110819, Liaoning, China; 2. Jinchangyu mining co. LTD, Tangshan 064307, Hebei, China; 3. Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing 100000, China)

Abstract: Si-Al-Ca-Fe-Mg-O system has been built with the alterated rocks as raw material to produce mineral crystal glaze under the high temperature. In this paper an investigation has been made into microstructure and phase composition by the way of X-ray diffractometer(XRD) and field emission electron probe microstructure(EPMA). The results indicate that the crystal of mineral glaze is quartz, hematite and magnesium ferrite. The ankerite and other minerals in the raw materials decomposed to produce Fe₂O₃, Fe₃O₄and MgO and formed MgFe₂O₄ due to the replacement of Mg²⁺.
Key words: mineral glaze; crystal glaze; alterated rocks; phase reconstruction