Katie Plumb

Really pleased with the fired porcelain tiles. The higher temperature has thrown up some amazing variants in colour and tone. The left 3rd has been fired to Stoneware Oxidation (1260 - 1270 degrees) The right 3rd to Stoneware Reduction ( 1280 degrees) and the bottom 3rd to Earthenware (1060 - 70 degrees) Below are the 10 Oxide tiles. 1. 5% Yellow Ochre 2. 10% Yellow Ochre 3. 3% Chromium Oxide

Having read the section by Kathleen Standen in the book Additions to Clay Bodies, I had an urge to make my own collection of stained clay test tiles - similar to the 'sweetie box' of tiles made by Kathleen. The best clay to test colour is a white clay. I had a bag of grogged porcelain to hand and so began the process of weighing, mixing, adding, blending, shaping and marking. I used 30 balls of 50g of porcelain. Each ball was flattened and the colour added. Initially, I add