Soapstone is a common silicate mineral that is distinguished from almost all other minerals by its extreme softness and takes its name from its soapy or greasy feel.
When it is extracted and brought into the open air it starts to dry out and becomes harder to work with. This is why the vessels were shaped, as far as possible, whilst still part of the rock face. Soapstone is also used today for fire-places and stoves.
Updated June 10, 1997 - The Viking Network