Why are some coloring oxides missing in the INSIGHT MDT?
We have found it better to consider colors and opacifiers as add-ons and rationalize their influence on the recipe level (except iron). Opacifiers do not melt into the glaze and are therefore not a part of its chemistry anyway. The contribution of colors to properties like thermal expansion is not well understood. For both of these, you are going to use the amount required to get the needed color and opacity no matter what the chemistry says anyway. INSIGHT enables you to relate the chemistry of a glaze to the way it fires, this is an inexact and relative science, learning these relationships with the base recipe (without colorants and opacifiers) is best, especially at the start. Later you can mentally factor in knowledge about colorant and opacifier effects on specific properties. You can still enter colorants and opacifiers into recipes in INSIGHT, it is happy to accept them (it marks them with an asterisk). Ultimately, if you need to include colorant chemistry in calculation, you c
