ZHOU Zhong-rong1, XIE Hong1*, CAI Xing-lin2, YANG Xu1, WANG Zhi-gang1
(1. College of Resources and Environmental Engineering, GuizhouUniversity, Guiyang 550025, China；
2.Guizhou Geological Proepecting Institute of China Chemical Geology and Mine Bureau，Guiyang 550003, China)
Abstract: A white mineral were found in the surface of phosphorus-bearing rock series appeared as aggregating powder and ginger shaped whisker in Songlin area, Guizhou Province, China. By using X ray diffraction (XRD), scanning electron microscopy energy spectrum analysis (SED) , it was determined as epsomite, with chemical formula MgSO4•7H2O. Epsomiteis whisker and ginger shape under the scanning electron microscope, andthere is little difference between the unit cell parameters and the ideal value. The original rocks provide important material sources for epsomite, whose forms may be suffered from weathering, leaching and evaporation-crystallization of phosphate rocks.
Keywords: epsomite; mineralogy; genesis; Songlin, Zunyi
E-mail：xh5033@163.com
ACTA MINERALOGICA SINICA Vol. 37, No. 4, 2017, Page 443-447
