Here's a link to Amy's website where you'll find a link to the list of Conservatorie mica's that are tested to be stable in cp.
http://www.greatcakessoapworks.com/handmade-soap-blog/index.php/coloring-your-cold-process-soap/
It's towards the bottom of this page in the Morphing Colors paragraph.
http://www.greatcakessoapworks.com/handmade-soap-blog/index.php/coloring-your-cold-process-soap/
It's towards the bottom of this page in the Morphing Colors paragraph.