Brilliant electric blue, silver mica shimmer, and UV-reactive Ink Stone! Second image is the swatch under blacklight. Our Ink Stones are concentrated, solid ink with sparkly mica powder that is best used for brush work. To use our ink stones, place the stone in a small dish or palette, simply add a couple drops of water or a wet brush to a flat portion of the stone, allowing the stone to hydrate and activate the ink. That's it! Also, you can use the entirety of the stone - no ink goes to waste!