Very fine Mica powders can be used by mixing powders with Klyer Fire into a very thin consistancy. Then adding (less painting than dropping and moving droplets to fill area) All of this has to thoroughly dry and then cap with compatible (to base) glass on top. Remember that Mica is a mineral and therefore will not melt, so the cap has to have a border around it with no Mica coverage. After drying, Mica can also be scratched off to form designs. Hope all this helps!