So many possibilities

UV/Thermal dip Powder with flakies throughout.
It changes from purple when cold to hot pink when warm (over 86 degrees) 

Also changes to a watermelon color when under bright direct sun, and transitions back to a gorgeous magenta color when taken out of the sun, while working its way back to purple. 
Its so fun and unpredictable! 
Colors may vary. This is what I caught on camera when experimenting with the powder applied to a swatch. 

Sold in .25 oz jars and 1 tsp samples