Fig. 10: Trace element mineral sources in casts of jade samples excavated from Guojiamiao. | npj Heritage Science

Fig. 10: Trace element mineral sources in casts of jade samples excavated from Guojiamiao.

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

Fig. 10

A The trace element composition of the jade artifacts found at the Guojiamiao Cemetery matches that of the northwest and northeast regions, which are two of China’s major tremolite jade-producing areas. B A statistical frequency analysis comparing the jade artifacts from Guojiamiao Cemetery with those from the northwest and northeast regions of China indicates that their trace element compositions more closely resemble those from the northwest region. C Further division of the northwest region into the Xinjiang, Gansu, and Qinghai subregions, based on mathematical discrimination results, suggests that the raw material production of the jade artifacts excavated from the Guojiamiao cemetery is in a class of its own in the Northwest China region. The attribution of these samples can be compared in a more comprehensive source characterization database in the future.

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