Jacquard Pearl Ex is a safe, pearlescent, non-toxic, inert powdered pigment that exhibits extreme colourfastness and stability, ideal for interior and archival applications. It has a use for every artist, from watercolourists to auto painters, faux finisher to rubber stamper. It can also be mixed with other artist mediums, oils, acrylics, encaustic, polymer clay, or spread dry on porous surfaces. Pearl Ex creates a metallic look without being a metal - it will not tarnish or fade.
The different particle sizes produce different looks, from a smooth pearly lustre, to a highly metallic sheen.
Colour chart: https://www.jacquardproducts.com/pearl-ex