Tolboom, Hendrik × Dusar, Michiel Dubelaar, Wim Dreesen, Roland Elsen, Jan Groessens, Eric van der Star, Carolien #
Geological Survey Professional Paper vol:305 issue:1 pages:47-77
Vlaams - Nederlandse Natuursteendag edition:3 location:Gent date:14 - 15 May 2009
Avesnes stone ("Avendersteen"). A peculiar type of historical building stone, originating from the north of France but initially part of the Low Countries, is highlighted: what kind of material it is, where it is coming from, where it has been used and what we can do to preserve these examples. There exist few documents on the use of Avesnes Stone in the Low Countries. For a long time in the Netherlands the stone was not recognized at all. There wasn't even a clear name for this material and up till now no definition. After research it became evident that this type of stone was a very important natural building material, especially for sculptures, and that it has been used for a long time, in spite of the fact that it hardly withstands our climate. From the past, different treatments are known to protect the stone against weathering and research is still going on how to conserve cultural heritage made of Avesnes stone. Material investigation and registering examples of its use are of common interest to geologists, conservation workers and art historians. The characteristics of the stone have their influence on the object which is made out of it. Valuation and conservation is impossible without being familiar with these characteristics.