A diachronic study of obsidian artifacts from Ceibal (Guatemala) links rising political complexity to new exchange behaviors, including the interregional movement of large polyhedral obsidian cores from the highlands and local pressure-blade production beginning in the early Middle Preclassic.
Chemical sourcing of obsidian artifacts indicates that San Lorenzo (an early Olmec center) was already embedded in long-distance exchange networks during its early occupation, with obsidian moving hundreds of kilometers from multiple highland sources into the Gulf Coast lowlands.
Geological and archaeological synthesis on Sierra/Cerro de las Navajas (Hidalgo) describes it as a heavily exploited obsidian deposit with evidence for specialized extraction (including underground mining) and long-distance distribution of its distinctive green-gold obsidian across major central Mexican polities over extended periods.
Evidence from Altica in the Teotihuacan Valley includes what researchers describe as the earliest known obsidian workshop in the valley, illuminating early Formative-era procurement and exchange centered near the Otumba source area.
Obsidian source proportions at Takalik Abaj show long-term reliance on Guatemalan highland sources (especially El Chayal and San Martín Jilotepeque) with later minor inputs from farther sources (including Pachuca)—evidence of evolving procurement routes over many centuries.
By the Early Classic, Teotihuacan had become a major center of obsidian craft production, with large-scale manufacture and distribution of obsidian goods to distant regions—an economic foundation for its interregional influence.
Obsidian sourcing at Izapa (Chiapas) demonstrates that exchange patterns were not static between the Late Formative and Early Classic; procurement shifted in ways associated with wider political-economic changes, including Teotihuacan’s growth and disruptions elsewhere in Mesoamerica.
Construction and dedication of the Temple of the Feathered Serpent (within the Ciudadela) occurred around the early 2nd century CE, reflecting Teotihuacan’s expanding urban-scale state power during a period when obsidian industries were central to its economy.
At Balberta on Guatemala’s Pacific coast, recovered obsidian includes significant material from Pachuca (and other central Mexican sources), among the highest Early Classic concentrations of Pachuca obsidian recorded in Guatemala, supporting models of long-distance exchange tied to central Mexico.
Sourcing and context studies at Tikal show that Pachuca green obsidian was rare before roughly the mid-2nd century CE but became far more common during the Early Classic, with hundreds of Pachuca artifacts documented—evidence for intensified long-distance movement of central Mexican obsidian into the Maya Lowlands.
Obsidian source profiles reported for Chichén Itzá indicate that different sources dominated in different periods—central Mexican sources (including Ucareo) are noted as characteristic of parts of the late 1st millennium CE, while Ixtepeque obsidian is emphasized as diagnostic for later Postclassic assemblages—signaling reconfigured networks after Classic-period transformations.
Neutron activation analysis of obsidian from three sites on the eastern Yucatán coast (Chac Mool, San Miguelito, El Meco) found the assemblages dominated by Ixtepeque obsidian, indicating strong Postclassic-era supply lines from the Guatemalan highlands to coastal trade nodes.
Archaeological research characterizes Otumba as a Late Postclassic production center with intensive manufacture of obsidian goods (including blade cores and prismatic blades), illustrating how specialized city-states participated in wider exchange systems feeding central Mexican consumption and redistribution.
Compositional analysis of obsidian artifacts from the Templo Mayor of Tenochtitlan documents multiple supply sources and artifact types (blades, cores, ornaments, ritual insignia), illustrating how Late Postclassic imperial and ceremonial demands drew on diversified procurement and distribution networks.
The Spanish capture of Tenochtitlan marks a major rupture in Late Postclassic political economy, transforming the institutional frameworks (tribute, market regulation, and state oversight) through which obsidian was produced, circulated, and consumed in central Mexico.
Mesoamerican obsidian trade networks (c. 1000 BCE–1521 CE)
