A Sa Huynh period earring was discovered in an excavation in Binh Thuan Province. The article says that the earring is made of glass, but from the pictures it looks like nephrite to me.
20 November 2007 () – National Geographic’s story on the chemical tracing of jade artefacts from Southeast Asia. It’s interesting to note that while the jade came mainly from a single source, they were worked outside of Taiwan. And despite their wide dispersal to Philippines, Vietnam and to a large part of Southeast Asia they were worked into two distinct styles, implying some sort of specialised tradition.
by Carolyn Barry
Jade jewelry found near ancient burial sites across Southeast Asia has revealed one of the largest marine trading networks of prehistoric times, a new study says.
Mineral analysis shows that most of nearly 150 sampled artifacts dated as far back as 3000 B.C. can be traced back to a single site in Taiwan (see map), about 190 miles (120 kilometers) off the coast of mainland China.
This indicates that the small island supplied much of Southeast Asia with a unique variety of the semiprecious stone via a 1,800-mile (3,000-kilometer) trade route around the South China Sea.
20 November 2007 (ABC News in Science, Reuters) – A new study in the Proceedings of the National Academy of Sciences reveals the existence of an extensive interaction network involving Taiwanese jade (nephrite) as far back as 5,000 years ago. The jade artefacts turn up in Taiwan, Vietnam, Thailand, Malaysia and the Philippines (where it is known locally as lingling-o). Using a newly-developed process to analyse the jade, the study found that 116 out of the 144 artefacts came from the same source in Taiwan. The predominant source of jade in Taiwan, coupled with the distribution of the jade artefacts throughout Southeast Asia and their relative uniformity of the artefact types, leads to the conclusion that there must have been an extensive degree of interaction between different Southeast Asian populations, even across the sea. What’s left now is to uncover the technique used to create the jade artefacts. Experimental archaeology, anyone?