I’ve used this nephrite green (Silicanordic 42312) many times on different light clays. It usually looks like the picture on the left. This time, I tried it on a black clay (Silicanordic 371) and it turned out very beautiful and different. When I opened the kiln and saw it, was I very surprised and could not understand which glaze I had used. Luckily I had written notes. I am very satisfied with this glaze on black clay