I just made this soap last night. I've read somewhere that if you place kaolin clay on your fragrance oils they will last longer in your soap so I did it. On the green layer, I used Eucalyptus FO while on the pink layer I used Peppermint FO. Upon unmolding, this is what I saw. Although I am pleased and happy with how it looks like, because the partial gel spots somehow added some aesthetic effect, but what seems to have caused this spots to happen?