Experimental Research on Counterfeit Methods of White Soak-induced Colour of Ancient Jade

In order to validate the common counterfeit methods of the white soak-induced colour of the ancient jade,the counterfeit methods of the ancient jade on market are studied by the experiments and the best experiment method is gotten for the counterfeit,providing the theoretical foundations for their identification.The formation of the white soak-induced colour of the ancient jade is also preliminarily inquired.The raw material samples of amphibole and serpentine are experimented with the acid treatment,alkali treatment and high-temperature treatment.The results show that the way of spattering hydro-fluoric on the jade and soaking the jade partly with wax is proved to be feasible;but the jade treated with alkali could not get the obvious result;the high-temperature treatment method is proved to be ideal for counterfeiting the white soak-induced colour of the ancient jade.The comparision of the white soak-induced colour characteritics between the pseudograph samples and the real ancient jades shows that some corrosive holes are equably distributed on the surface of the samples treated with acid;the frost-like white soak-induced colour is on the surface of the samples treated with alkali;and some cracks caused by fire partly occur on the surface of the samples by heated treatment.The pyroxene is the stabilization species when heated to 1000℃.