Southeast Asian Glass

Southeast Asia is one of the primary centers of archaeological study of glass in the world. The main reason for this is that not much else survives in the humid, wet, tropical conditions of Southeast Asia. Another large reason is that there are so many glass objects found in Southeast Asia – often thousands of objects at each site. Compared to areas like Scotland, where we often find one or two glass objects per site, Southeast Asia is practically made of glass.

beads-2The Objects

Most of the glass objects in Southeast Asia are beads, specifically Indo-Pacific beads. Perhaps 75% of all glass objects in the region are beads, and that’s a rather conservative estimate. The second most common glass objects are bangles.  I am not aware of many (if any) glass vessels.

Distribution

Most research on glass in Southeast Asia focuses on Malaysia or Thailand. There is now some growing research in Indonesia and Cambodia, and a very small amount on glass objects in Vietnam, Laos, and the Philippines. I’m not aware of any research in Myanmar or Brunei, though it may have begun in the last few years.

The objects tend to range across roughly 1200 years. Since not much survives (particularly wood) in Southeast Asian archaeology due to humidity and poor preservation conditions, it is very difficult to find anything that will allow us to date any of the objects we’ve found. It doesn’t help much that the same glass objects have been in use in the region from roughly 400BC to present day. If the beads are archaeological, however, they tend to date between 200BC and 1200AD.

Technology

Southeast Asia has predominantly drawn beads, though wound, folded, and molded beads also appear in archaeology.

mosaic jatim-1There are also Jatim beads, named that way because they come from Jawa Timur (East Java, in Indonesia). These are relatively unique beads, and I will discuss them in another post some day. One of these types, however, is the mosaic cane eye beads. These have slices of mosaic canes of glass placed onto glass cores in the pattern of eyes, then cooled. These beads have been found all over island Southeast Asia and some islands in the Pacific. They are incredibly similar to the technique used for mosaic beads in Roman, Norse, Anglo-Saxon, and other European contexts, but there is no current evidence that these groups interacted with Indonesia at this time.

Chemistry

There are a number of chemical types in Southeast Asia, but the most common is mineral soda-alumina glass (m-Na-Al). This can be subdivided into a number of types, several of which are found in Southeast Asia. There are also mineral soda-lime glasses (m-Na-Ca), plant-ash soda-lime glasses (v-Na-Ca), potash glasses with higher lime content (which I write as m-K-Ca), potash glasses with higher aluminum content (which I write as m-K-Al), and potash glasses with high aluminum and high lime contents (which I write as m-K-Ca-Al).

Social Structure

One of the interesting points about Southeast Asian glass is that a number of sites that certainly made beads were also probably making the glass use to make those beads. This is interesting largely because we don’t see evidence for combined glass and bead making in places said to have heavy influence on Southeast Asia’s glass industries (e.g. South Asia). One takeaway is that Southeast Asian artisans developed their own take on the trade. Another is that Southeast Asian attitudes towards these artisans was probably significantly different from those in other nearby regions, since these artisans were engaging in both crafts.

However, Southeast Asia is an enormous region, and treating it as a single entity is relatively naive. Doing so for nearly every region I discuss on this blog is also naive, but I also haven’t studied those regions to the extent that I have Southeast Asia. I’m going to refrain from much further discussion about social structure in the region as a whole, then, since it is such a vast region with such varied cultural groups both historically and in the present day.

One point of interest I’ve mentioned before is the presence of Jatim beads in Korea. Jatim beads include bird and star beads, certain opaque yellow beads, mosaic cane eye beads, and certain combed beads. Outside of Java, they’re limited to parts of Korea, though one bead has been found at Berenike, Egypt. The distribution of these beads is interesting, because they are not found anywhere save for these three, very far removed locations. This suggests fairly direct trade relations between Javanese manufacturers and Egyptian and Korean consumers that would have bypassed other major super-powers (e.g. India and China) in order to trade with other groups that were further away. Alternatively, such trade may have existed with places in India and China, but not for specifically Jatim beads.

References

Allen, Jane
1997    Island Angkor, Coastal Kedah: Landscapes, Subsistence Systems, and State Development in Early Southeast Asia. Indo-Pacific Prehistory Association Bulletin 16: 79-86.

Basa, Kishor K.
1991    The Westerly Trade of Southeast Asia from c. 500 BC to c. 500 AD with Special Reference to Glass Beads. PhD dissertation, Department of Archaeology, University of London.

Bellina, Berenice
2003    Beads, Social Change, and Interaction Between India and South-East Asia. Antiquity 77(296): 285-297.

Bronson, Bennet
1977    Exchange at the Upstream and Downstream Ends: Notes Towards a Functional Model of the Coastal States in Southeast Asia. In Economic Exchange and Social Interaction in Southeast Asia. Karl L. Hutterer, ed. Pp 39-52. Ann Arbor: Michigan Papers on South and Southeast Asia, No. 13.

Dussubieux, Laure
2001    L’apport de l’Ablation Laser Couplée à l’ICP-MS à la Caractérisation des Verres: Application à l’Étude du Verre Archéologique de l’Océan Indien. Thesis, PhD. Universite d’Orleans.

Dussubieux, Laure and B. Gratuze
2003    Non Destructive Characterization of Glass Beads: Application to the Study of Glass Trade Between India and Southeast Asia, in 9th International Conference of the European Association of Southeast Asian Archaeologists, Sigtuna, May 27th-June 2nd 2002, 135-148.

Dussubieux, Laure, B. Gratuze, and M. Blet-Lemarquand
2010    Mineral-Soda-Alumina Glass: Occurrence and Meaning. Journal of Archaeological Science 37(7): 1646-1655.

Francis, Peter
1988-89 Glass Beads in Asia Part I. Introduction. Asian Perspectives 28(1): 1 – 21.
1991    Beads in Indonesia. Asian Perspectives 30(2): 217-241.
2002    Asia’s Maritime Bead Trade: 300 BC to the Present. Honolulu: University of Hawai’i Press.

Harrisson, T.
1950    Kelabit Land Dayak and Related Glass Beads. Sarawak Museums Journal V(2): 201-220.

Hutterer, Karl
1982    Early Southeast Asia: Old Wine in New Skins? A Review Article. The Journal of Asian Studies 41(3):559-570.

Indraningsih, R.
1985    Research on Prehistoric Beads in Indonesia. Paper presented to the 12th Congress of the Indo-Pacific Prehistory Association Symposium, Manila.

Lamb, A.
1965    Some Observations on Stone and Glass Beads in Early Southeast Asia. Journal of the Malaysian Branch of the Royal Asiatic Society. 37(2): 87-124.

Lankton, James W. and Laure Dussubieux
2006    Early Glass in Asian Maritime Trade: A Review and an Interpretation of Compositional Analyses. Journal of Glass Studies 48: 121 – 144.

Lankton, James W., Laure Dussubieux, and Thilo Rehren
2009    A Study of Mid-first Millennium CE Southeast Asian Specialized Glass Beadmaking Traditions, in Interpreting Southeast Asia’s Past, monument, image, and text. 335-356.

Lape, Peter
2003    A highway and a Crossroads: Island Southeast Asia and Culture Contact Archaeology. Archaeology Oceania 38: 102-109.

van Leur, J.C.
1955    Indonesian Trade and Society. Bandung: Nijhoff.

Pilditch, Jacqueline
1992    Glass Beads of Ban Bon Noen, Central Thailand. Asian Perspectives 31(2): 171-181.

Ramli, Zuliskander, Nik Hassan Shuhaimi, and Nik Abdul Rahman
2009    Beads Trade in Peninsula Malaysia: Based on Archaeological Evidences. European Journal of Social Sciences 10(4): 585-593.

Subramanian, R.
1950    Analysis of Ancient glass Beads. Current Science 19: 19 – 20.

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About Heather Christie

Heather is an archaeologist, photographer, and writer whose research focuses on beads and bead trade, particularly in a maritime sense. She's currently working working on a PhD in Digital Design (focusing on heritage visualisation) at the Glasgow School of Art.
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