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In the occasion of the Diwa Symposium organized by Prof. Chen Guoda, Institute of Geotectonics at Changsha, Ⅰ got a sample of jade (Yü) from Zhejiang Province. The question was asked what is the mineralogical composition at the
In the occasion of the Diwa Symposium organized by Prof. Chen Guoda, Institute of Geotectonics at Changsha, Ⅰ got a sample of jade (Yü) from Zhejiang Province. The question was asked what is the mineralogical composition at the