Travel to Pluto
When you rub the powder between your fingers, you will note that it is exceptionally soft and smooth (thanks to the silica). You will also see the whiteness disappear as it bursts into a silvery glow.
If you rub the powder across a piece of white paper with black background and tilt the paper, you will see a subtle shift from silver-green into silver-red to green-gold. This is the color-shift in action.
Pluto is particularly good at showing off its "traveling hues", more so than Mars. I think you will especially enjoy using it in lip balms and pastel-colored eye shadows. I also recommend it as an opalescent additive to nail polishes.
It will also add a bit of mystery to transparent bath products such as clear soap, shampoo and bath gels.
Here are the guidelines for "best use":
◦*Use the color alone or in with small amounts of dark colors such as blue, black or green
◦*Use in transparent, translucent or semi-opaque formulas (for example: lip gloss, not lip stick)
◦*Mix it gently (avoid grinding it in a mortar and pestle or blender)
◦*Package in transparent packaging to show off the color shifting