| Abstract: |
Nephrite and Jadeite artifacts were original ones in the prehistory of Vietnam. They were first manufactured in the Late Neolithic Cultures in the mountaineous areas and the north coast such as Ha Long, Mai Pha, Ha Giang. The typical ones are axes, adzes and bracelets. In the early Bronze Age (the Phung Nguyen Culture) jade propered and existed in the forms of ornaments, tools, weapons and spiritual symbols. In the Phung Nguyen and Dong Dau cultures, there were two jade - making workshops, namely Tranh Kenh and Bai Tu. In these two sites, manufacturing technique was accomplished. sawing, cutting and drilling techniques were popular. In the late Dong Dau - Go Mun Cultures, Nephrite artifacts still existed in the forms of ornaments, typically earrings with 4 projections. In the Dong Son culture, jade artifacts and manufacturing technique flourished with manufacturing workshops as Bai Te, Ma Chua and Con Cau (Thnah Hoa Prov.). there were mainly flat earrings cheifly found in burials. In the Sa Huynh Culture and the pre- Oc Eo sites, jade ornaments were also found. There have been evidences of Nephrite manufacture in Dai Lanh, Giong Ca Vo sites
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