"Surprise" Bombs With Mica Powder?

[AnnaNikole]

I am relatively new to making bath bombs, and I want to make some "surprise" bombs (white on the outside, color on the inside). I've seen plenty of tutorials on how to do this with a liquid colorant, but none on how to go about it with pigmented powder/mica powder. If anyone could give me some tips, I would really appreciate it. Thanks!

 

[jcandleattic]

Make an embed and enclose it in the white bomb. ratio for embed, 1:1 citric acid to baking soda, with your binder, coloring the powder with mica before adding the binding agent.

 

[AnnaNikole]

Make an embed and enclose it in the white bomb. ratio for embed, 1:1 citric acid to baking soda, with your binder, coloring the powder with mica before adding the binding agent.

That's what I was thinking of doing, I just didn't know the name for it. Also I'm glad you included the ratio. Thank you!