So excited to have started colors in my soap! The first time adding mica I added it directly to the divided cups with out pre mixing it with a light oil. The second colored batch I mixed 1 tea spoon of mica to 1 table spoon almond oil . They both turned out fine however I feel like the mica premixed with oil got thick fast ...or maybe it was the fragrance oil. Does mica have to be premixed with oil ?