Chameleon Pigment Experiments

Anyone heard of chameleon pigments? This spring I ordered some, just to experiment! I just love this stuff, the two kinds which I bought go from copper to green-gold and purple-blue to purple-red. They shift depending on the angle of lighting. I've been experimenting all summer with how to keep that color shift nice and sharp, how they interact with regular pigments, and what kind of finish I can use. Now to figure out how to display these. It's really hard to show on camera, and even in life the best lighting to see the shift is under natural sunlight, (and it is beautiful under natural sunlight!). Anyways, here are some previews of the paints I've done so far. In the future, I'm hoping to get a few more of these pigments, it would be awesome to see a whole rainbow of this kind of color!