Fig. 6: Structural characteristics of the jade samples excavated at Guojiamiao. | npj Heritage Science

Fig. 6: Structural characteristics of the jade samples excavated at Guojiamiao.

From: Mineral origin of tremolite jade artifacts from the Guojiamiao Cemetery, Eastern Zhou Dynasty, Hubei, China: based on petrology, spectroscopy, and geochemistry

Fig. 6

A Due to the effect of soil burial, the crystal structure of tremolite can be seen in the jade artifacts in the form of short clusters. B The phenomenon of shedding of short needle-like inclusions is visible in jade. (C) It has a distinctive fibroblastic texture in sample GM76:1, also known in gemmology as “waterline”. D The original yellow-brown color formed by surface weathering is retained in jade GM55:06.

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