gems, jade, fei cui, pyroxene jade, jadeite, amphibole jade, nephrite, dyed nephrite, dyed jade, dyed nephrite

Since we first encountered dyed jadeite in 1956, we have expected the appearance of dyed nephrite, but until recently we had not seen or heard of any. Figure 13 is a photograph of a well-carved nephrite tablet with chrome-green mottling. Spectroscopic examination of the green areas proved to us that the color is due to dye. Possibly, nephrite does not take the dye uniformly; therefore, this accounts for the absence of dyed material in the trade.