AN INVESTIGATION OF THE CHEMICAL CONSTITUENTS OF SOME RENAISSANCE PLASTERS.

Authors :: Newton, R. G.
Sharp, J. H.
Source :: Studies in Conservation. Nov87, Vol. 32 Issue 4, p163-175. 13p. 3 Black and White Photographs, 2 Charts, 3 Graphs, 1 Map.
Publication Year :: 1987
Abstract: A study was made of 21 renaissance plasters from Jacobean halls within a radius of 60km around Sheffield (England). The compositions of the plasters fell into two groups. Those prepared from carboniferous limestone contained calcium carbonate, quartz and animal hair but no free calcium hydroxide, despite claims in the literature that it might be found. The plasters which had been prepared from dolomitic limestone contained, in addition, magnesium carbonate and magnesium hydroxide. [ABSTRACT FROM AUTHOR]