1,700-year-old Roman tomb finds dye more valuable than gold in coffin sealed for centuries

Archaeologists studying ancient Roman tombs in England have made a discovery that is changing experts’ understanding of the wealth and burial traditions of Roman-era Britain. While examining infant burials in Roman York, researchers found traces of Tyrian purple, one of the rarest and most expensive dyes in the ancient world. According to BioScience, the extraordinary discovery was hidden among remains from a burial dating back nearly 1,700 years. Researchers also found delicate gold threads woven into fabric fragments, suggesting the children buried there belonged to a family of very high social status. Experts say the discovery is particularly important because ancient textiles rarely survive long enough to be studied. In this case, unusual burial conditions appear to have preserved tiny traces of fabrics and dyes under the York soil for centuries.

Ancient Roman tomb reveals rare dye more valuable than gold

The discovery was made during research into two Roman-era tombs from the late third or early fourth century AD. One of the tombs contained a child believed to be around two years old, who was placed in a sarcophagus with two adults. The second burial contained a lead coffin containing an infant who was only a few months old.Researchers at the University of York examined materials preserved in the tomb and found traces of the luxurious textiles that once covered the bodies. According to archaeologists, the fabrics were decorated with gold thread and dyed with Tyrian purple, a color closely associated with the wealth, power and imperial authority of the Roman Empire.Project director Maureen Carroll explains that this is the first confirmed evidence of Tyrian purple found in Roman York. According to reports, researchers did not expect such rare material to survive in the tomb.

What makes Tyrian purple more valuable than gold

Tyrian purple was one of the most precious dyes in the ancient world. The color was produced using murex collected primarily near the ancient Phoenician city of Tyre (in present-day Lebanon).The process of making dyes is extremely difficult and time-consuming. Even a tiny amount of pigment must be crushed by thousands of sea snails. Due to the amount of effort and resources required to produce, this dye became extremely expensive. Historians say that at certain times in Roman history, Tyrian purple was reportedly worth several times the price of gold by weight.As a result, purple clothing became a symbol of elite status throughout the Roman Empire. Emperors, nobles and wealthy officials often wore purple clothing to show their power and importance. Experts believe the discovery of Tyrian purple in Roman York shows the family associated with the tombs were among the wealthiest in Britain at the time.

How plaster helped rare purple textiles preserve for 1,700 years

Ancient textiles are rarely preserved because the fabrics often decay quickly in the ground. However, archaeologists believe that in these tombs, an unusual burial method of plaster helped protect the remains for centuries.During the burial ceremony, liquid plaster was poured around the body. Over time, the material hardens into a protective shell that retains the clothing’s imprints and microscopic traces of the fabric. In some areas, a faint purple tint is still visible on the surface of the plaster when examined. Many dye traces are invisible to the naked eye and can only be detected after scientific testing. Research specialist Jennifer Wakefield led the laboratory analysis using liquid chromatography-tandem mass spectrometry, also known as LC-MS/MS. Tests confirmed that the pigment found in the tomb was true Tyrian purple and not another red or purple dye sometimes used in Roman textiles. The researchers say the results are surprising and have important implications for the study of Roman Britain.