From Medievalists.net, via my friend Roman Kovalev:
Thousand-year-old crucible provides more evidence of the Vikings in Canada’s Arctic
Although it was found about fifty years ago, archaeologists have just determined that a small stone container discovered on Baffin Island in Canada’s Arctic region was actually part of metallurgical equipment used by the Vikings around the year 1000 A.D.
The findings were revealed in an article published in the journal Geoarchaeology, by archaeologist Patricia Sutherland. She and her co-authors report that scanning electron microscopy was employed to determine if metal traces were present in a small stone container (about 48 mm tall) from an archaeological site on Cape Tanfield, part of the southern coast of Baffin Island.
They found that the interior of the vessel contained fragments of bronze, an alloy of copper and tin, as well as small spherules of glass which are formed when rock is heated to high temperatures. The object is a crucible for melting bronze, likely in order to cast it into small tools or ornaments. The crucible appears to have been broken while in use, suggesting that it was likely used at the locality where it was found.
The artifact was originally excavated during the 1960s and identified as the fragment of a small soapstone pot made by the local indigenous people, the Palaeo-Eskimo who occupied the area in the centuries around 1000 A.D. However among the Palaeo-Eskimo artifacts Sutherland has identified a wide range of specimens that resemble those used by Europeans of the Viking and medieval periods. These include lengths of yarn spun from the fur of local animals, whetstones bearing metal traces from tools that had been sharpened, and tally sticks of the type used for recording transactions.
More at the link.