{"id":189636,"date":"2025-04-17T21:23:17","date_gmt":"2025-04-17T21:23:17","guid":{"rendered":"https:\/\/peraltafinancing.com\/anthropology\/how-iron-age-craftspeople-on-the-carmel-coast-turned-snails-into-royal-power\/"},"modified":"2025-04-17T21:23:17","modified_gmt":"2025-04-17T21:23:17","slug":"how-iron-age-craftspeople-on-the-carmel-coast-turned-snails-into-royal-power","status":"publish","type":"post","link":"https:\/\/fivemor.com\/?p=189636","title":{"rendered":"How Iron Age Craftspeople on the Carmel Coast Turned Snails into Royal Power"},"content":{"rendered":"


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At first glance, Tel Shiqmona appears unassuming\u2014a rocky outcrop overlooking the Mediterranean just south of modern-day Haifa. But beneath its surface, archaeologists have found what may be the most robust evidence yet of a long-standing, industrial-scale dye production facility operating between 1100 and 600 BCE. Not for clay, copper, or olive oil, but for something far more elusive: color.<\/p>\n

And not just any color.<\/p>\n

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Photo of body sherds of purple dye vats with purple dye remains. Credit: <\/span>PLOS ONE<\/em> (2025). DOI: 10.1371\/journal.pone.0321082<\/span><\/figcaption><\/figure>\n<\/div>\n

Purple, long a marker of prestige in the ancient Mediterranean, wasn\u2019t merely an aesthetic choice. In the Iron Age, wearing Tyrian purple was often a sign of political power, spiritual authority, or dynastic wealth. Now, a team of archaeologists, chemists, and historians has traced that power to a gritty workshop where craftspeople crushed marine snails, fermented their innards, and produced one of the most expensive pigments of the ancient world.<\/p>\n

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\u201cThis is the first time we\u2019ve been able to document half a millennium of continuous, large-scale production of mollusk-based purple dye in a single place,\u201d<\/span>
said Golan Shalvi, lead author of the study and director of excavations at the University of Haifa\u2019s Zinman Institute of Archaeology.<\/span><\/p>\n<\/blockquote>\n

The findings, published in <\/span>PLOS ONE<\/span><\/em>, reframe how archaeologists understand Iron Age economies\u2014not just as agricultural or military engines, but as specialized manufacturing hubs deeply embedded in regional politics and global trade.<\/span><\/p>\n

Tyrian purple doesn\u2019t come easily. The dye is made from the hypobranchial gland of several Mediterranean sea snails\u2014<\/span>Hexaplex trunculus<\/em>, <\/span>Bolinus brandaris<\/em>, and <\/span>Stramonita haemastoma<\/em>. Extracting the dye requires not only killing hundreds of snails per gram of pigment, but also a precise fermentation process that includes controlled exposure to air and, sometimes, heat. The gland\u2019s secretion starts off green and only turns purple upon oxidation, a transformation as magical as it is malodorous.<\/span><\/p>\n

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Hexaplex trunculus<\/em> shell collected near Tel Shiqmona. 400 such shells were identified by two free-style divers within 90 mins at a depth of one to two meters on October 20, 2020. Photo by Ayelet Gilboa. Credit: <\/span>PLOS ONE<\/em> (2025). DOI: 10.1371\/journal.pone.0321082<\/span><\/figcaption><\/figure>\n<\/div>\n

Despite its historical fame, few sites have offered clear evidence of where and how this dye was produced. Shell middens and colored sherds have turned up sporadically across the Levant and Aegean, but Shiqmona is the first place where an entire purple dye facility\u2014vats, tools, architecture, and residue\u2014has been found and contextualized within a diachronic archaeological record.<\/p>\n

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\u201cWhat we see at Shiqmona is more than sporadic shell processing. It\u2019s a vertically integrated dye production complex, sustained over centuries,\u201d said Ayelet Gilboa, co-author and senior archaeologist at the University of Haifa.<\/p>\n<\/blockquote>\n

Shiqmona was no sleepy fishing village. Excavations show the site housed a series of workshops, each with massive clay vats, some over 70 centimeters wide, many stained with a deep purple band where oxidized dye once sloshed. Chemical analyses confirmed the pigment\u2019s origin from <\/span>Hexaplex trunculus<\/em>.<\/span><\/p>\n

The site yielded over 175 artifacts connected to dye manufacture: vat fragments, crushed shells, grinding stones, and purple-streaked potsherds. Many of these were found inside buildings\u2014contrary to long-held assumptions that the smell of rotting snails would have pushed production outside settlement walls.<\/p>\n

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\u201cThere\u2019s been a myth in the literature that these dye facilities were remote or hidden. But Shiqmona shows the opposite. The industry was part of the built environment,\u201d said Shalvi. \u201cThis was a place of work, noise, and probably a lot of smell\u2014but also expertise.\u201d<\/p>\n<\/blockquote>\n

Some of the vats were large enough to hold 350 liters of fluid. Based on ceramic petrography, they were made locally with coastal clay rich in foraminiferal chalk and marine microfauna\u2014fabrics specific to the Carmel coast.<\/p>\n

Shiqmona\u2019s industrial output waxed and waned with political fortunes. Production ramped up in the 9th century BCE, coinciding with the rise of the northern Kingdom of Israel. Later, during Assyrian occupation, the site flourished again. When the Babylonians sacked the region in the 6th century BCE, production stopped\u2014and so did the occupation of Shiqmona.<\/p>\n

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Stone tools with purple dye residue. Credit: Maria Bukin; <\/span>PLOS ONE<\/em> (2025). DOI: 10.1371\/journal.pone.0321082<\/span><\/figcaption><\/figure>\n<\/div>\n

The site\u2019s stratigraphy mirrors larger historical arcs, suggesting that purple dye wasn’t merely a luxury good but also a node in a larger economic and symbolic system.<\/p>\n

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\u201cThis dye wasn\u2019t just for elites\u2014it helped create elites,\u201d said Naama Sukenik, an Israel Antiquities Authority expert on ancient textiles. \u201cAccess to and control over this kind of production would have reinforced status in both secular and ritual spheres.\u201d<\/p>\n<\/blockquote>\n

Today, the same rocky reef that once hosted abundant <\/span>Muricidae<\/em> is a marine nature preserve. The mollusks have declined across the Mediterranean, stressed by pollution and warming seas. But on calm days, divers still spot them clinging to the rocks near Shiqmona\u2014biological ghosts of an industry that shaped empires.<\/span><\/p>\n

Modern analysts aren\u2019t just mining color from the past. They\u2019re reconstructing how ancient people organized labor, managed marine resources, and produced craft knowledge over generations. In the process, they’re sketching a more complete picture of what it meant to be a node in the ancient global economy\u2014not just for kings, but for craftspeople.<\/p>\n