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