Thanks, I am torn over just

[HaleyB]

Thanks, I am torn over just buying the ones others have found work and testing my far too extensive supply on hand. However I know I can use them up as bat/glass separator. Mica works great for that! Or I can donate to my favorite art teacher. Choices

Someday I’ll do a spreadsheet on the coloring agents so I can see if there are any patterns. There must be.