Bead Assemblages Research Articles

Glass beads in a Dillybag: a cached assemblage from a rockshelter in Quinkan Country, Cape York Peninsula, Queensland, Australia

ABSTRACT In the 1970s, a rare assemblage of trade beads was discovered inside a woven plant fibre bag in a rockshelter (the ‘Dillybag site’) near Laura, Cape York Peninsula, Queensland. Cached post-1895, the bag held more than 4000 glass beads strung on cotton, nylon and hand-spun (possibly human) hair twine. Seventy-eight percent of beads showed some degree of damage from bead-on-bead contact, suggesting that the assemblage accumulated gradually over time. All beads on hair twine were minute or small, and potentially reveal consumer choice in their selection, as does the large proportion of red, white and black beads, suggesting a preference for customary colours. This cache is not only the largest collection of glass beads recovered from an archaeological context in Australia, but also speaks to the dynamism, agency and persistence of the Indigenous people of southeast Cape York Peninsula following invasion.

Late Pleistocene scaphopod beads from Boodie Cave and deep time traditions of personal ornamentation in northwest Australia

Tubular segments of Scaphopoda (tusk shell) were traditionally used by Aboriginal peoples in the manufacture of ornate bead necklaces across northwest Australia. Twenty-seven scaphopod shell beads were recovered from Boodie Cave on Barrow Island dating to between 13,500 and 10,600 cal BP. We compare the Boodie Cave bead assemblage to historical necklace collections as well as experimental studies on scaphopod blanks to characterise bead manufacture, breakage, use-wear, and placement patterns. Results demonstrate that the Boodie Cave beads are larger than other northwest Australian collections; have been manufactured by an anvil-rested percussion technique; have signs of use-wear in the form of polish and rounding but are less curated than specimens from the inland Kimberley. The use-wear study identified that the Boodie Cave beads were strung in a series in a pattern not observed in historical scaphopod necklaces from northern Australia. This patterning may represent a regional variation in display and technological organisation and was likely part of wider ornamental practices documented in historical sources. In all, the Boodie Cave beads provide early and additional evidence for the trade, wearing, and loss of scaphopod beads by mobile hunter-gathers on a dynamic coastline.

Ostrich eggshell beads from Little Muck Shelter, southern Africa: First impressions and regional perspectives

Hunting and gathering communities in southern Africa produced ostrich eggshell (OES) beads for personal ornamentation, trade and exchange, and various forms of symbolism. OES beads convey information related to not only technological processes, but also social histories, making them useful tools for investigating these processes in the archaeological record. In the middle Limpopo Valley, hunter-gatherers produced beads from periods that predated the arrival of farmer societies, before ca. AD 150, until the decline of the Mapungubwe capital, AD 1300. Their analysis may therefore lead to insights into local economies, craft activities, trade and exchange, and social roles. However, no study in the middle Limpopo Valley has sufficiently investigated these beads and their status within forager society. In this paper we study the manufacture of OES beads from one of the excavated forager-occupied shelters in the valley, Little Muck. This study is the first of its kind from a hunter-gatherer context in the region. It shows that Little Muck’s beads were standardised but produced in varying frequencies across temporal periods, and made following different production strategies. Use-wear analysis hints that some of the beads were pigmented and possibly altered using heat treatment. As an initial foray into a forager bead assemblage of the region, this study demonstrates the value such an approach may yield, and it aids in guiding future attempts. It also compares Little Muck’s bead assemblage with those from other sites across a much wider region where such studies have taken place. The findings demonstrate similar patterns to other parts of southern and eastern Africa, but also illustrate local shifts in bead production that follow changes in local socio-political dynamics.

From seashore to Neolithic floor: origins and spatial distribution patterns of shell bead assemblages at WF16, a Pre-Pottery Neolithic A settlement in Southern Jordan

Shells have been collected and used as body adornments by Homo sapiens for at least 140,000 years. Major increases in their use occurred during the Late Pleistocene and, with the gradual transition to the Neolithic, likely reflected new forms of social interaction associated with larger communities and less mobile lifestyles. We explore this development by considering the shell bead assemblage from WF16, a Pre-Pottery Neolithic A (PPNA) site in southern Jordan. This assemblage is one of the largest known from the early Neolithic and can be divided between two PPNA phases. We identify a changing preference for shell types between these phases, one that parallels a change in the wider region which may be associated with evolving social networks during the early Neolithic.

Making ties and social identities: Drawing connections between PPNB communities as based on shell bead typology.

People tend to belong to multiple social circles, which construct and reflect a person's social identity. Group affiliation is embodied and may be expressed by personal adornment. Personal adornment in general has multiple functions in human societies, among them the assimilation and transmission of different aspects of personal and collective, social and cultural identity. Beads in general, including shell beads, often constitute parcels of composite adornment, and as such are used in different configurations to portray these messages. The shared use of similar bead types by different individuals and communities indicates the mutual affiliation of the sharing parties to the same cultural circles and reflects social ties and relationships. The Pre-Pottery Neolithic B (PPNB) period in the Levant is a time of pivotal changes to human lifeways necessitating profound adjustments in all aspects of life, including social relations and networks. Here we use the shell bead assemblage from the cultic-mortuary aggregation site of Kfar HaHoresh, in comparison to shell bead assemblages from multiple other sites in the Levant, as a proxy for the exploration of local and regional networks and connections between PPNB communities. Multivariate analyses of shell bead type distribution patterns across the Levant demonstrate that some types were widely shared among different communities, characterising different geographic regions, while others were rare or unique, highlighting relationships between sites and regions, which are occasionally independent of geographic proximity. Specific occurrences of shared shell bead types between Kfar HaHoresh and compared sites further illuminate the web of connections between PPNB communities in the Levant and the varying breadths of sharing-patterns reflect the hierarchical nature of the underlying social circles. Outlining these widening social affiliations sheds light on the complex structure of Neolithic social identity.

Socioeconomic roles of Holocene marine shell beads reveal the daily life of composite objects from East Kalimantan, Borneo

Cultural objects composed of composite materials with differing physical properties are often differentially preserved in archaeological records favouring those materials less susceptible to taphonomic processes. Using microscopically observed wear patterns to decipher a model of socioeconomic roles for composite beaded objects, this study examines the rich marine shell bead assemblage excavated from Liang Jon in East Kalimantan, Borneo. Assessment of this 16,700-year sequence provides a unique context for discussing collection, transport, manufacture, and use of marine shell beads; spanning the biogeographical change associated with sea level rise 11,700 years ago creating the island of Borneo. Quantifying differences in bead wear patterning and distribution has revealed changes across 11,000 years of human occupation—detail seldom exposed in Island South East Asian archaeology. Results demonstrate marine species belonging to the families Nassariidae and Cypraeidae were targeted for the manufacture of beads. Whole shells and removed dorsa indicate some onsite manufacture occurred, while patterns of wear and residues including pigments, suggest most beads originated from different varieties of composite objects brought to the site and maintained in different contexts of daily life. Our model reveals a novel picture of Holocene social complexity broadly associated with dated rock art, providing a unique link between parts of the rich archaeological record at the Liang Jon, circumventing popular modes of ethnographic analogy less appropriate for this region.

Sequins from the sea: Nautilus shell bead technology at Makpan, Alor Island, Indonesia

One defining characteristic of Homo sapiens is the production and use of personal ornamentation. Evidence from Africa and western Eurasia has dominated discussion, but a growing number of finds directs attention towards Island Southeast Asia. In this article, the authors report on an assemblage of Nautilus shell beads from the Indonesian cave site of Makpan, Alor Island. The highly standardised forms, mostly with two perforations, and evidence of use wear, indicate that these beads were utilised as appliqués. Dating to the terminal Pleistocene, these beads appear to form part of a wider tradition also attested on Timor and Kisar, suggesting an early inter-island network across southern Wallacea.

Shell disc beads and the development of class-based society at the K2-Mapungubwe settlement complex (South Africa)

The K2-Mapungubwe settlement complex is widely regarded as the centre for the development of class-based society out of earlier ranked communities between c. AD 900 and AD 1300 in northern South Africa, southern Zimbabwe, and eastern Botswana. Beads made from ostrich eggs, the shells of Achatinidae snails, and freshwater bivalves formed an important part of the K2-Mapungubwe economy. Although thousands of shell beads have been excavated at the K2-Mapungubwe complex, this assemblage has never been analysed or even quantified in any meaningful manner. As such, only rough estimates of the distribution, use, and meaning of shell beads at these important sites were done. This article represents the first focussed research effort on this assemblage. The results demonstrate distinct spatial and chronological changes in the shell bead assemblage. Achatina beads are more common earlier in earlier phases, but after AD 1220, ostrich eggshell beads dominate. This could indicate access to new sources of raw materials. Our analysis took into account the spatial and social contexts of beads. This indicated that shell bead assemblage from the higher-status royal living areas remained morphologically constant over time, with a clear preference for smaller-sized beads. In contrast, beads from the lower-status areas could be grouped into distinct clusters of larger and smaller beads. The grouping of smaller bead on lower-status areas closely resembles elite assemblages. Smaller beads however become proportionally rarer outside elite areas over time. This may reflect changes in elite control and preferential access to shell beads. These results demonstrate how the use and manufacture of shell beads intersected with the socio-political changes that characterise the period. It also highlights the need for careful consideration of shell beads as a significant component of the political economy in the southern African Iron Age.

Identifying Bronze Age glass production centres through bead-making techniques

The assemblage of Bronze Age glass beads found in the territory of present-day Poland counts 3100 pieces. The earliest examples known from excavations in central Europe are dated most often to the BrB–HaA1/A2 phases of the Bronze Age (= BA II–III/IV); they are made of high magnesium glass (HMG), which is now most frequently corroded. In the HaA2–HaB3 phases (= BA IV–V), beads were produced of a “mixed alkali” glass, also called low magnesium and high potassium glass (LMHK), which is usually preserved in rather good condition. The oldest beads are large as a rule, well made, using, at least in some cases, the folding technique. Small, undecorated beads made of “mixed alkali” glass were produced by the winding technique.

Ostrich eggshell beads from Ga-Mohana Hill North Rockshelter, southern Kalahari, and the implications for understanding social networks during Marine Isotope Stage 2.

Ostrich eggshell (OES) beads from southern African archaeological contexts shed light on past traditions of personal ornamentation, and they are also argued to provide a proxy for understanding past social networks. However, OES beads are often understudied and not reported on in detail. In particular, there has been little research on OES bead variation during Marine Isotope Stage 2 (29,000-12,000 years ago) which includes the Last Glacial Maximum when changing climatic conditions are hypothesized to have significant impact on forager social networks. Here, we present the first technological analysis of terminal Pleistocene OES beads and fragments in the Kalahari from the ~15 ka levels at Ga-Mohana Hill North Rockshelter. We contextualise these findings through comparison with coeval OES bead assemblages across southern Africa during MIS 2. Results indicate that OES beads were manufactured at Ga-Mohana Hill North during the terminal Pleistocene occupation, based on the presence of most stages of bead manufacture. The review shows that OES beads were present across southern Africa through MIS 2, suggesting that culturing of the body was an embodied and persistent practice during that time. While the importance of OES beads as decorative objects was shared by populations across southern Africa, variation in bead diameters indicate that there was stylistic variation.

Crafting Swahili Beads: Exploring a New Glass Bead Assemblage from Northern Zanzibar, Tanzania

This article presents the discovery and analysis of a new glass bead assemblage from the Swahili site of Mkokotoni, an early second millennium AD settlement in northwestern Zanzibar. It explores the possibilities for local production of glass beads using imported glass cullet or glass tubes at this site. Glass beads are ubiquitous at archaeological sites from the second millennium on the East African coast. They are presumed to have been traded via long-distance networks from South and Southeast Asia, and used locally in personal adornment, barter, and ritual practices. However, the data from Mkokotoni offers a new and unique perspective on glass bead-making traditions, which places the East African coast as an area of production and distribution.

The rise of the Maritime Silk Road about 2000 years ago: Insights from Indo-Pacific beads in Nanyang, Central China

The glass artifact is one of the earliest and most important commodities between China and abroad along the Maritime Silk Road. Contrary to historical records, archaeological evidence reflecting overseas trade is rare in Central China at the initiation stage of the Maritime Silk Road during the 1st century BCE. In this study, we reported an assemblage of monochromatic glass beads from Nanyang City in Central China during the mid-late Han Dynasty (202 BCE-220 CE). These beads are typical Indo-Pacific beads and have been analyzed by LA-ICP-MS, Raman, and visible to near-infrared spectroscopy to determine glass types, color-presenting mechanisms, origins as well as the potential trade routes. All the beads belong to potash glass, and their compositions suggest that the beads originate from South Asia, Southeast Asia, or South China. These beads are the earliest Indo-Pacific beads found in Central China so far, reflecting the rise of the Maritime Silk Road since the end of the 2nd century BCE. Most of the beads could be dated to the period when the Land Silk Road was in chaos, implying that the Eastern Han Dynasty (25-220 CE) relied more on the Maritime Silk Road and river-ocean combined transportation to import overseas artifacts to Central China.

Koráliky z germánskej rezidencie v Cíferi-Páci (juhozápadné Slovensko) / Beads from the Germanic residence at Cífer-Pác (southwest Slovakia)

When compared with contemporary Germanic settlements, the assemblage of beads from the late antique elite residence at Cífer-Pác (Trnava district) is exceptional not only in the number of individual specimens but also in the variability of forms and materials used. Apart from usual types of glass beads, the assemblage also comprised specimens made from rare materials (marble, carnelian) and materials that appear exotic in the barbarian territory north of the Danube (sea coral, jade). They were identified with the help of natural scientific analyses and gemological methods (Raman spectroscopy). Absorption spectroscopy was used to analyse elements that influence the final glass colour.

Characterization of Glass, Shell, and Fishbone Beads on Ibo Island (Northern Mozambique) in the Context of the Indian Ocean Trade

A set of beads made of glass, gastropod mollusk shell, and fishbone from a Swahili occupation level on Ibo Island (northern Mozambique) is dated to the eleventh and twelfth centuries AD. The chemical composition of the glass beads and their chromophores, and the shell and fishbone materials, are studied to understand the local and trading provenance of these items. Representative samples of each material, including two flat glass shards, were characterized using optical microscopy, field emission scanning electron microscopy (FESEM) with energy dispersive X-ray (EDS) microanalysis attached, UV-Vis-NIR spectrophotometry, and X-ray diffraction (XRD). Glass beads represent 60% of the bead assemblage. The shell and fishbone beads are 38.75% and 1.25%, respectively. Three groups of glasses were identified: (1) mineral-soda alumina glass beads associated with the recently identified m-Na-Al 6 group that come from Western India; (2) vegetal-soda alumina, represented by one flat glass shard probably from the Middle East, and beads of v-Na-Al glass of type A that came from Central Asia; and (3) conventional soda-lime silicate glasses, of modern chronology and probable European origin. Groups 1 and 2 show a variety of chromophores, both ionic and colloidal. A ruby-color bead was also identified as belonging to the Na2O-ZnO-SiO2 system and colored with cadmium sulfoselenide colloids, but this was of modern chronology. Shell beads were made from Lambis lambis gastropod mollusk shells and were locally produced. The fishbone beads may have been from a cartilaginous fish of the Chondrichthyes class, but it is difficult to specify the taxonomical level. The results of the analysis suggest that Ibo Island was integrated very early into the Swahili trade networks of the Indian Ocean.

Compositional and provenance study of glass beads from archaeological sites in Mali and Senegal at the time of the first Sahelian states.

The presence of glass beads in West African archaeological sites provides important evidence of long-distance trade between this part of the continent and the rest of the world. Until recently, most of these items came from historical Sub-Saharan urban centers, well known for their role in the medieval trans-Saharan trade. We present here the chemical analysis by Laser Ablation-Inductively Coupled Plasma-Mass Spectrometry (LA-ICP-MS) of 16 glass beads found in three rural sites excavated during the past decade: the funerary site of Dourou-Boro and settlement sites of Sadia, in central Mali, as well as the settlement site of Djoutoubaya, in eastern Senegal, in contexts dated between the 7th-9th and the 11th-13th centuries CE. Results show that the raw materials used to manufacture the majority of the glass most probably originated in Egypt, the Levantine coast and the Middle East. One bead is of uncertain provenance and shows similarities with glass found in the Iberian Peninsula and in South Africa. One bead fragment found inside a tomb is a modern production, probably linked to recent plundering. All of these ancient beads were exchanged along the trans-Saharan trade routes active during the rise of the first Sahelian states, such as the Ghana and the Gao kingdoms, and show strong similarities with the other West African bead assemblages that have been analysed. Despite the remoteness of their location in the Dogon Country and in the Falémé River valley, the beads studied were therefore included in the long-distance trade network, via contacts with the urban commercial centers located at the edge of the Sahara along the Niger River and in current southern Mauretania. These results bring a new light on the relationships between international and regional trade in Africa and highlight the complementarity between centres of political and economic power and their peripheries, important because of resources like gold for eastern Senegal.

The stone beads from Barrada’s hypogeum 1 (Aljezur, Algarve, Portugal). Greenstone distribution patterns in the Iberian Southwest late Neolithic

The raw material and shape choices for stone beads are extremely diverse, but while a diversity of colors and minerals was available it seems clear that Iberian beadmakers had a clear preference for green colored minerals.Previous research by Odriozola et al. suggests that among these green colored stones used to manufacture body ornaments the use of different raw materials is chronology-specific.This model was built upon the available radiocarbon dates and the chemical data for beads. Some issues may however be noted with regard to this model: 1) the long use of the tombs, which makes it difficult to associate personal adornments to specific individuals; 2) most necropolises were the object of old excavations, with an insufficient stratigraphic record; and 3) the frequent curatorial practice of gathering all the adornments from a necropolis in necklaces.In addition to the former issues, it is worth pointing out that the association of personal adornment with buried individuals is extremely rare for collective burials, and no radiocarbon dates are available for any of the rare individuals clearly recorded in association with green beads. We therefore consider the rare association between an individual buried at the Hypogeum 1 of Barrada and a bead assemblage as an exceptional opportunity to test this model against high quality data.This paper offers a characterization of the raw materials and the chronology of this bead assemblage by means of X-Ray Fluorescence (p-XRF) and the radiocarbon dating of a tibia directly associated with the bead anklet under study. The data is then analyzed in a broader context to garner a better understanding of the consumption patterns for greenstones.

Beads and bead residues as windows to past behaviours and taphonomy: a case study from Grassridge Rockshelter, Eastern Cape, South Africa

Ostrich eggshell and gastropod shell beads provide important evidence for understanding how past peoples decorated and cultured their bodies and may also be used as proxy evidence for interpreting the nature and extent of past social networks. This study focuses on the ostrich eggshell and gastropod shell bead assemblages from the terminal Pleistocene (~ 13.5 to 11.6 ka) and mid-Holocene (~ 7.3 to 6.7 ka) occupations from Grassridge Rockshelter, South Africa. We present results from a multi-method approach to understanding bead manufacture and use that combines a technological analysis of the bead assemblages with Raman spectroscopy. Raman spectroscopy analyses were conducted on surface residues identified on the beads, ochre pieces, a grooved stone, and sediment samples, and provide further insight into past behaviours and taphonomy, as well as modern contaminants. Results indicate that ostrich eggshell beads were manufactured at Grassridge during both occupations, and that bead size changed through time. Use-wear and residue analyses demonstrate the complex taphonomy associated with bead studies from archaeological contexts, and the need for further taphonomic research. These analyses also suggest that some ostrich eggshell and Nassarius beads were potentially worn against ochred surfaces, such as skin or hide, as evidenced by the amount and location of the ochreous residues identified on the beads.

Glass Beads from Medieval Gao (Mali): New Analytical Data on Chronology, Sources, and Trade

Abstract Excavations at several archaeological sites in and around Gao have resulted in the recovery of thousands of glass beads presumed to have been acquired from glass bead-producing centers through trade. The bead assemblages cover the period from the eighth to the fourteenth century CE. Here we report on the results of compositional analysis by LA-ICP-MS of 100 beads, permitting comparison with the growing corpus of chemical analyses for glass from African and Near Eastern sites. In this analysis, several compositional groupings are recognized. These include two types of plant-ash soda-lime-silica glass (v-Na-Ca), a mineral soda-lime-silica glass (m-Na-Ca), a high-lime high-alumina (HLHA) glass, a mineral soda-high alumina (m-Na-Al), glass, a plant ash soda-high alumina (v-Na-Al) glass and a high lead composition glass. The reconstruction and dating of depositional contexts suggests a shift in glass sources at the end of the tenth century CE. The issue of source identification is discussed and occurrences at other African sites are mapped, providing new data towards an understanding of trade and exchange networks.

The effects of heating ostrich eggshell on bead manufacturing: An experimental approach

Archaeological ostrich eggshell (OES) bead assemblages often comprise a variety of colours. However, it is unclear if the range of colours seen in OES beads were caused deliberately by anthropogenic action, or accidentally by post-depositional taphonomic factors. In this study, OES fragments were heated to four different temperatures (200 °C, 350 °C, 550 °C, and 700 °C) to recreate colour variation observed in the OES bead assemblage from the Marine Isotope Stage (MIS) 1 occupations at Grassridge Rockshelter, South Africa. Beads were manufactured from the four samples of heated OES fragments, as well as from an unheated sample of control fragments. Time to perforation, successful bead manufacture and/or breakage, as well as loss of mass and fragility, were all documented to examine if heated ostrich eggshell performed differently from unheated ostrich eggshell during bead manufacture. Our results show that three of the four heated samples resulted in detrimental changes to ostrich eggshell properties, specifically the loss of mass and an increase in fragility, which negatively affected bead manufacture indicated by increased incidence of breakage and longer average times to perforation and completion. We compare these findings with the worked OES assemblage from Grassridge Rockshelter, South Africa, and our results indicate that unintentional heat treatment may have substantially impacted the colouration of the worked OES assemblage at Grassridge, especially with regard to heat treated preforms. Moreover, we argue that the impact of unintentional heat treatment on the colouration of worked OES assemblages, and especially preforms, should be more broadly considered across the archaeological record.

Angkor Borei and Protohistoric Trade Networks: A View from the Glass and Stone Bead Assemblage

Angkor Borei, Cambodia was an important urban center related to the early first millennium c.e. polity known as Funan. Excavations in the protohistoric period Vat Komnou Cemetery site uncovered over 1300 glass and stone beads, which are important material indicators of trade. In this article, we review data from earlier studies and add new previously unpublished data on glass and stone beads from this collection as well as previously unpublished glass compositional analyses from the nearby site of Oc Eo, Vietnam. Examinations of the glass beads highlight the presence of large quantities of high alumina mineral soda glass associated with Sri Lankan or South Indian bead production as well as smaller quantities of other glass types in circulation throughout Southeast Asia. Compositional and morphological studies of agate/carnelian beads show strong affinities with the Indian bead industry, while the garnet beads came from raw material sources in southern India. Overall, Angkor Borei's bead collection shows strong contacts with different regions of South Asia. Comparison with the bead assemblages of other contemporaneous sites demonstrate strong affinities with sites farther inland, such as Phum Snay and Prei Khmeng, Cambodia and Ban Non Wat, Thailand rather than other maritime coastal sites in Southeast Asia. We argue that the stone and glass beads at Angkor Borei are related to intensified interaction with South Asia and that elites at Angkor Borei used these exotic prestige goods to build alliances with sites farther inland forming an intraregional exchange network we call the Mekong Interaction Sphere.