A small, nearly transparent tool found in France almost a century ago is offering new clues about the abilities of Neanderthals. The object is a scraper made from rock crystal, a material rarely used by these early humans and far harder to shape than the stones they typically relied on.
The piece was discovered in 1924 during excavations led by American archaeologist George Grant MacCurdy at Abri des Merveilles, a rock shelter in southwestern France. Between 1924 and 1929, his team recovered seven rock crystal tools at the site, along with small flakes left over from their manufacture.
Why rock crystal was an unusual choice
Neanderthals usually worked with flint, a material that breaks in more predictable ways and allows sharp edges to be produced relatively easily. Rock crystal, by contrast, is far more difficult to carve and demands greater care during shaping.
The tools found at Abri des Merveilles stand out for their transparent appearance. Carving debris found in the same layer of soil shows the Neanderthals worked the material inside the shelter itself. The crystal likely came from the headwaters of the Vezere River, though researchers still have questions about the exact route the raw material took to reach the site. The Vezere valley, in the Dordogne region of southwestern France, is known for holding some of the richest concentrations of prehistoric sites in Europe.
Dating a tool without radiocarbon evidence
The age of the pieces is estimated at between 45,000 and 80,000 years. Because the site lacks precise radiocarbon dating, researchers base that estimate on the soil layers, the types of tools recovered and the nearby discovery of a Neanderthal molar.
A find that challenged old ideas
In 1931, MacCurdy put forward an interpretation that broke with the dominant thinking of his era. He argued that the choice of crystal was not driven purely by practical reasons, and that Neanderthals may have been able to appreciate the quality, shape and color of the materials they used.
His conclusion clashed with the widely held image of Neanderthals at the time as clumsy, unintelligent beings incapable of aesthetic appreciation. That portrayal had been reinforced decades earlier by anthropologist Marcellin Boule, who misread certain features of a Neanderthal skeleton that were actually the result of severe arthritis the individual had suffered.
How views of Neanderthals have changed
Perceptions of these ancient humans shifted over time, particularly after genetic evidence showed that Neanderthals interbred with modern humans. In September 2025, the National Museum of Archaeology of France acknowledged the historical significance of the find by naming the crystal tool its Object of the Month.
Questions remain about the exact origin of the quartz used to make the tool. Even so, the discovery preserves an idea that was ahead of its time: that Neanderthals could tell the difference between an ordinary stone and one they considered especially appealing.
