BORON NITRIDEBoron nitride is a create addition to iron oxides as it can make the matte colours sparkle and will offer some translucency.As with the other iron oxide filler tests, I used the Aster matte pigment grind from TKB Trading. I doubled the recipe to be…3.2 grams manganese violet1.0 grams ultramarine pink1.0 grams ultramarine blueI’m…