by Heather Luke | Jun 24, 2015
A precious gemstone with a hue ranging from deep red and purple to pale pink; as a colour, generally refers to a dark, rich , slightly blue,...
by Heather Luke | Jun 24, 2015
See martindale test/ Wyzenbach test /...
by Heather Luke | Jun 24, 2015
A technique for taking an imprint of a motif in a relief in brass or stone. A piece of paper is placed over the motif and rubbed over with a pencil, chalk or coloured wax–in this way the outline of the pattern is transferred. * Taking rubbings from...
by Heather Luke | Jun 24, 2015
A material made either by coagulating and dying the latex–or gum–from the rubber tree, or as a synthetically extruded rubber look-alike. * A thin, fine grade of sheet rubber can be used for shower curtaining. * Natural rubber floor tiles are excellent,...
by Heather Luke | Jun 24, 2015
A small circular window, mostly seen in attic rooms and on the apex walls of stone, flint or brick-built barns and other agricultural buildings, there to admit light rather than showcase a...
