Shells below,stars above: four perspectives on shell beads

ABSTRACT

In the papers assembled here, five scholars focus on shell beads at site, watershed, and regional scales. Themes include manufacturing techniques such as bore size discussions, changes in bead preferences over time and geography, the appearance of beaded regalia, and shell bead meaning. Claassen’s paper addresses the beads at Late Archaic Indian Knoll; Connaway discusses shell beads in northwestern Mississippi; Pearson looks at beads from coastal Georgia; and Webster and King examine beads before and after European contact in the Potomac basin.     

From shell to glass: how beads reflect the changing cultural landscape of the seventeenth-century lower Potomac River valley

ABSTRACT

This article examines over 7,500 beads from eight Native archaeological sites located in the lower Potomac River valley in order to understand how changes in bead assemblages between AD 1300 and 1712 expressed an ever-evolving Chesapeake cultural landscape. This analysis demonstrates clear differences in the types and distributions of beads from mortuary and domestic/nonmortuary contexts. Ossuary contexts contained the highest frequency of beads with the number of beads increasing over time. Following the arrival of English settlers in the 1620s, glass beads begin to appear in ossuary contexts. Beads from domestic or nonmortuary contexts are fewer in number, and those present were manufactured using local materials, including bone and clay, as well as shell. However, after 1680, there is a shift from shell beads being predominate on Native sites, to sites containing exclusively glass beads, red and black glass beads in particular. Post-1680 sites appear to reflect Piscataway displacement and the disruption of indigenous trade routes, leading Natives to obtain beads from colonial vendors. The distribution of bead color, an important attribute for communicating Native states of being, also shifts after 1680, with assemblages once dominated by white shell beads now dominated by black and red glass beads.     

Southern African glass beads: chemistry,glass sources and patterns of trade

Three-hundred-and-sixty glass beads from 19 archaeological sites in southern Africa dating between about the 8th and 16th centuries AD were analyzed using LA-ICP-MS, determining 47 chemical elements. The eight different bead series, previously defined on morphological characteristics, possess different glass chemistries. Some bead series were made from plant-ash glasses, others from soda-alumina glasses. Zhizo series beads of the late 1st millennium AD were probably made from Iranian glass. Later bead series were made of glass probably manufactured in South Asia, though there are changes through time in both South Asian glass recipes and bead morphologies.     

Seventeenth-Century Glass Trade Beads from La Salle's Fort St. Louis and the Grand Village of the Kaskaskia

Abstract

Glass trade beads are described here from two seventeenth-century sites located in the upper Illinois Valley, La Salle's 1682–1691 Fort St. Louis and the nearby Grand Village of the Kaskaskia, destroyed during an Iroquois raid in 1680. Simple monochrome drawn beads characterize both bead assemblages and each contains significant percentages of very small (<2 mm) and small (2–4 mm) size beads. Dominant colors are blue, white, and black. Turquoise-blue beads were a staple of the French trade at this time in the Illinois Country, particularly in transactions involving La Salle and his successors based at Fort St. Louis. Comparative treatment provided as part of this research indicates that there are significant similarities between the bead assemblage from Fort St. Louis and the beads recovered from the 1686 wreck of La Salle's ship Belle in Matagorda Bay off the Texas coast.     

NEUTRON ACTIVATION ANALYSIS OF AD 1660–1930 EUROPEAN COPPER-COLOURED BLUE GLASS TRADE BEADS FROM ONTARIO,CANADA

Blue glass trade beads from well-dated late seventeenth- to early twentieth-century sites and collections have been analysed non-destructively by instrumental neutron activation analysis. The beads display enough variations in their elemental contents to allow us to characterize the different chemistries. The implication of these results is that similar chemical analyses of blue beads from undated archaeological sites may be used to help date the sites, since each bead chemistry has a specific earliest period.     

Towards a typology of stone beads in the Neolithic Levant

Abstract

This study is an attempt to develop a comprehensive typology of the earliest stone bead assemblages in the southern Levant from Late Natufian and Neolithic sites. I propose this typology as a tool for studying stone beads almost a century after Horace Beck published his monumental bead typology. Beads are often neglected artifacts in archaeological excavations, but a bead typology can contribute to definitions of relative chronology and to a broader understanding of social and economic aspects of certain prehistoric societies.     

Land Snail Shell Beads in the Sub-Saharan Archaeological Record: When,Where, and Why?

Shell beads are well established in the archaeological record of sub-Saharan Africa and appear as early as 75,000 BP; however, most research has focused on ostrich eggshell (OES) and various marine mollusc species. Beads made from various land snails shells (LSS), frequently described as Achatina, also appear to be widespread. Yet tracking their appearance and distribution is difficult because LSS beads are often intentionally or unintentionally lumped with OES beads, there are no directly dated examples, and bead reporting in general is highly variable in the archaeological literature. Nevertheless, Achatina and other potential cases of LSS beads are present at over 80 archaeological sites in at least eight countries, spanning the early Holocene to recent past. Here, we collate published cases and report on several more. We also present a new case from Magubike Rockshelter in southern Tanzania with the first directly dated LSS beads, which we use to illustrate methods for identifying LSS as a raw material. Despite the long history of OES bead production on the continent and the abundance of land snails available throughout the Pleistocene, LSS beads appear only in the late Holocene and are almost exclusively found in Iron Age contexts. We consider possible explanations for the late adoption of land snails as a raw material for beadmaking within the larger context of environmental, economic, and social processes in Holocene Africa. By highlighting the existence of these artifacts, we hope to facilitate more in-depth research on the timing, production, and distribution of LSS beads in African prehistory.     

European Trade in Malawi: The Glass Bead Evidence

In most African contexts, glass beads are evidence of direct and indirect exchanges between communities and are often useful chronological markers. Their analysis contributes to a better understanding of the social relationships between ancient societies. Over the last decade, the archaeometric analysis of glass beads has gained ground in Sub-Saharan Africa, but large regions across southeastern Africa have remained underexplored. Glass beads excavated from the Hora 1, Hora 5, and Mazinga 1 sites in the Kasitu Valley of the Mzimba District of northern Malawi were analyzed using laser ablation—inductively coupled plasma—mass spectrometry (LA-ICP- MS). These are granitic rock shelter sites located 40 km from Lake Malawi. They have predominantly Early Holocene and Pleistocene deposits but with a scattering of more recent material at the top. Analysis revealed that most of the beads were from European manufacture with one exception—a bead that has a composition typical of South Asia and that circulated from the fifteenth to the seventeenth century AD. Although Europeans were not present in the region before the second part of the nineteenth century, the presence of European beads testifies to trade directly or indirectly involving Europeans, most likely in association with increased trade in ivory and enslaved persons. The presence of the bead from South Asia and two cowrie beads from a fourth nearby site (Kadawonda 1) that dates to the seventh century AD show that European trade was the most recent manifestation of connections between the hinterland and the coast.

     

Beads from a mediaeval pilgrim centre: Chemical composition and provenance of glass from Banganarti,Nubia, Sudan

Christian Nubia was a region with intensive transcultural connections that are visible through the understudied overseas glass bead imports found there. This paper presents the results of an analysis of 20 glass beads from Banganarti, a Christian pilgrim site active during the Makuria kingdom (mid-sixth to 14th centuries CE). Compositional analyses using laser ablation–inductively coupled plasma–mass spectrometry (LA-ICP-MS) have identified glass belonging to a number of broad compositional groups. Two beads were made of mineral soda-lime glass, dated before the mid-ninth century CE. Numerous beads were made from plant ash-soda-lime glass associated with “Mesopotamian” production dated between the eighth and 10th centuries CE. Lead-soda-silica glass has parallels in the ninth–10th centuries glass found in Africa and Europe. One plant ash-soda-lime bead was of eastern Mediterranean origin dated after the 10th century CE. Results of this study provide new evidence for provenance and chronology of glass beads available in the mediaeval Northeast Africa as well as contribute new data to the research on the pilgrim and/or trade routes of that time.     

GLASS TRADE BEADS FROM THE ENGLISH COLONIAL PERIOD IN THE SOUTHEAST,CA. A.D. 1607–1783

Abstract

The study of glass trade beads has contributed much to our chronological understanding of the colonial period in the Eastern Woodlands of North America. Indeed, this class of artifact has allowed archaeologists to identify and conduct research at important archaeological sites that never appeared in the European historical record. In the Southeast, the best chronological resolution established by current bead chronologies relates either to sixteenth- to mid-seventeenthcentury Spanish-traded bead assemblages or eighteenthcentury French-traded bead assemblages. There is a conspicuous gap, however, in glass bead chronologies associated with the seventeenth- and eighteenth-century English-Indian trade in the Southeast. In this paper, I address this gap by characterizing a large sample of trade beads (n = 35,309) found in individual mortuary assemblages recovered from a number of Southeastern Indian sites. This is the first time a regional synthesis of this scale has been conducted for the English colonial period in the Southeast. In order to begin to refine the bead chronology of this period, I also present the results of a quantitative seriation (using a technique known as correspondence analysis) of the same mortuary assemblages. While the results of this exploratory technique represent a preliminary stage in this process, they nevertheless identify a number of temporal trends that can be used to derive occupation date estimates for sites spanning the English colonial period in the Southeast (ca. 1607–1783).     

CHEMICAL ANALYSIS OF GLASS BEADS FROM MEDIEVAL AL‐BASRA (MOROCCO)

This paper reports the results of elemental analysis, using laser ablation – inductively coupled plasma – mass spectrometry (LA–ICP–MS), of 30 glass beads from an assemblage of beads excavated at medieval al‐Basra, Morocco. Six chemical glass types are represented and their characteristics and geographical origins are discussed, with reference also to the techniques used to make the beads. The presence of numerous beads of lead–silica glasses is of particular interest. The morphological, technological and chemical analyses of the bead assemblage shed light on al‐Basra's trade connections.     

合浦汉墓出土绿柱石宝石珠饰的科学分析

采用便携式拉曼光谱仪对广西合浦出土的新莽(8—23年)和东汉(25—220年)晚期的宝石珠饰进行了原位无损分析,新发现了一批在外观上极易被误认为各色水晶的绿柱石族矿物(如海蓝宝石和透绿柱石)制作而成的浅蓝色和无色透明珠饰。利用手持式显微镜对绿柱石宝石珠饰的穿孔形状、孔径大小及其内部微痕特征进行了观察分析,参考南亚和东南亚同时期石质珠饰的钻孔工艺及钻具研究成果,认为这批绿柱石珠饰采用了钻石钻头双面对钻钻孔工艺。结合南亚地区宝石资源、出土绿柱石宝石珠饰及其钻孔工艺和加工作坊等情况,认为这批绿柱石宝石珠饰是由南亚经海上丝绸之路输入的舶来品。研究结果为探讨汉代中国南方与南亚和东南亚的经济和文化交流提供了有益信息,有助于提高对古代海上丝绸之路这一贸易网络在传播珍贵物品的认识。     

CHARACTERIZATION OF LATE CHALCOLITHIC MICRO‐BEADS FROM ÇAMLIBEL TARLASI,NORTH‐CENTRAL ANATOLIA

Micro‐bead manufacture is geographically widespread from the fifth millennium bc . Previous studies of comparable micro‐beads from sites in the Indus Valley region and the Near East suggest that many of these beads were formed from synthetic enstatite. Characterization of micro‐beads from the Late Chalcolithic site of Çaml?bel Tarlas? was carried out by optical microscopy (OM), scanning electron microscopy (SEM) and microanalysis with energy‐dispersive X‐ray spectroscopy (EDS), and X‐ray diffraction analysis (XRD). The chemical composition of the micro‐beads analysed indicated that they were made from three distinctive materials; namely, bulk talc (i.e., synthetic enstatite precursor), apatite and mineral‐rich clay pastes.     

Classification of the Amber Beads of the Hungarian Bronze Age

Abstract

Spectroscopic provenance analysis of Hungarian amber artifacts has shown that nearly all of them are of Baltic amber or succinite, which occurs naturally only in northern Europe. The present paper explores the question whether these beads were made in northern Europe and imported into Hungary as finished products, or were made in Hungary from imported raw material.

To this end, 659 extant amber beads of the Bronze Age of Hungary are divided into 17 types by shape and dimensions. The significance of the typology is borne out by striking diachronical patterns: e.g., flattened globular beads (Group III) are virtually limited to the Middle Bronze Age, while truncated bi-conical beads (Group IX) are essentially exclusive to the Late Bronze Age. By comparing Hungarian bead forms of a given period with those of countries to the north, including Denmark and the Baltic States, the classification offers a means by which imported beads may be distinguished from locally made beads.     

甘肃张家川马家塬战国墓地M4出土料珠研究

甘肃马家塬墓地是战国晚期至秦初的西戎墓地,本研究以该墓地M4出土的料珠为研究对象,以期通过分析其成分和结构特征,讨论其工艺特征,以丰富对战国时期费昂斯的相关认识。研究使用扫描电子显微镜-能谱和激光拉曼光谱仪,分析结果显示料珠为费昂斯制品,其釉层玻璃化程度很高,经历腐蚀后熔剂流失严重,明显区别于西周时期的费昂斯制品。同时确定釉层中的一些高锡颗粒物为SnO_2,表明当时在釉层制作中加入锡石或锡粉末。该费昂斯制品应采取了直接施釉或包埋施釉工艺。研究结果可为我国费昂斯发展历程演变提供信息。     

Stone, paste, shell and metal beads from Sharm

Eighty-seven beads of various materials are discussed according to the twelve typological groups into which they are divided. This typology is largely based on bead shapes, although manufacturing techniques and materials are also discussed. The beads are also compared to other assemblages in southeastern Arabia.     

台湾出土部分古代玻璃珠的科学分析

使用北京大学科技考古实验室的激光剥蚀电感耦合等离子体发射光谱分析了台湾省出土的18件古代玻璃珠子标本．结果表明这些珠子主要属于钙镁玻璃系统、钾玻璃系统、铅玻璃系统以及钠钙玻璃系统．除钠钙玻璃以外其它玻璃的制作技术均和同时期在大陆流行的玻璃制作技术同源。而成分分析结果显示钠钙玻璃可能来自印度或者东南亚,说明中古时期台湾岛是“海上丝绸之路”的重要中转站。     

Overseas imports on the Blue Nile: Chemical compositional analysis of glass beads from Soba,Nubia

Archaeological evidence as well as textual sources leave no doubt about Alwa's (Alodia's) intense transcultural connections, further corroborated by understudied overseas glass bead imports found there. This paper presents results of an analysis of 23 glass beads from Soba, the most prosperous capital of medieval Nubia. Compositional analyses using laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) have identified glass belonging to a number of broad compositional groups. Three samples were made of soda lime low-alumina glass produced in the Middle East (v-Na-Ca) and Egypt (m/v-Na-Ca). The remaining beads were made of two types of mineral–soda high-alumina glass (m-Na-Al) North Indian in origin. The results of this study provide new evidence for the provenance and chronology of glass beads available in medieval Soba and Northeast Africa, and contribute new data to research on trade contacts of that time.     

Later Stone Age ostrich eggshell bead manufacture in the Northern Cape,South Africa

Two different prehistoric manufacturing pathways are identified in the manufacture of ostrich eggshell beads in the South African Later Stone Age. In Pathway 1, blanks are drilled prior to being trimmed to rough discs. This is the dominant production strategy and is consistent with most ethnographic accounts. That in which the trimming occurs first, Pathway 2, was rarely practiced. The data from five bead factory sites in Namaqualand show that most breakage occurs during the drilling stage and that the production process has not changed through the last 4000 years. The use of grooved stones for smoothing beads is contentious and the identity of drilling tools remains unknown. Contrary to the suggestions of others, beads seem to have been readily produced at both short and long term occupation camps and scarcity of ostrich egg is unlikely to have been a determining factor. The lack of production debris reflecting large beads suggests these beads were brought into Namaqualand from elsewhere.