Glaze Test Results

We mixed up a few batches of glazes this weekend and I just opened the kiln from the firing. Overall I was really happy. There was only one glaze that I didn't care for much. Also, I adjusted one of the recipes I had very slightly and was very pleased. I don't know much yet about the glaze chemistry but I did know that generally speaking copper gives you green in oxidation. I just upped the amount of copper and I did get the slightly more green I was looking for. Of course I am only basing my "more green" notion on a picture of the original recipe. It could be that there would have been virtually no difference at all between my recipe and the original. The pictures do a poor job of showing glazes. The appear much different in person.  Below are a couple pictures from the test. The isolated test tile is my favorite. Also, I included a photo of the "green" glaze before it was fired. It is amazing that it starts off red and ends up coppery green. I tested many combinations of glazes and if time permits I will post more photos.