Prase Opal from Tanzania
ZHAO Haiping;ZHANG Xuemei;HE Xuemei;Henan Bureau of Geological Environment Exploration;School of Gemology;China University of Geosciences;
..............page:14-21
Mineralogical Characteristics of “Jinsiyu”(Quartz)
DU Shanshan;YIN Ke;HAN Wen;LIU Deng;YIN Yin;Gemmological Institute;China University of Geosciences;Faculty of Earth Sciences;China University of Geosciences;Beijing Institute of Gemmology;National Gems &Jewelry Technology Administrative Center;School of Environmental Studies;China University of Geosciences;Key Laboratory of Bio-geology and Environmental Geology;China University of Geosciences;
..............page:49-53