本件玉玦殘失一半,全器呈扁環狀,並磨至光滑細緻,環外緣有兩個方形突起,推測復原後為外環帶有四個突起的玦,環內側留有兩面旋截的痕跡。 質地為蛇紋岩,黃綠色夾雜綠色斑紋,學者指出這類石材原產於花東地區,東部的卑南文化人群曾大量使用此美石,作為裝飾與儀式性用品。而位於台灣南部的北葉遺址有出土蛇紋岩廢料與器物,表示這些器物也有在該地製作加工完成的可能性,然而石材如何從東部運來,以及其交換貿易體系等問題,有待學者進一步研究。
This artifact is one half of a broken jade earing. The earing has finely polished surfaces and has an overall shape of a flat open hoop. It was made of serpentinite, which originated in Taitung (eastern Taiwan). Other serpentinite artifacts and associated manufacturing waste materials have been found at the same site of Bei-ye, Pingtung (southern Taiwan), which indicates that it could have been made locally. Further research is required to reveal more about the prehistoric trading system and possible transportation routes for movement of serpentinine from its source.
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