Nice pigment
I have used this in clear melt and pour soap. I would describe the colour as a medium navy pearl.
In the picture of the soaps (see photo attachment to this review) I have 'Blue Cambridge' on the bottom, 'Blue Green' in the middle, and clear up the top. The essential oil I used to fragrance the soap gave a slight green/yellow tint to the clear soap but I doubt it affected the mica parts very much.