A Sprinkle of Blues #4 is a medium-dark gray with bluish-teal and silver sparkle and shimmer. Applied dry, I could barely get it to show up at all. I had to dampen the brush with two to three times amount of water I normally would to get color to swatch. Urban Decay Redemption (LE, $18.00) is similar. LORAC Slate (P) is also similar. Disney by Sephora Flotsam (LE) is slightly cooler-toned. Urban Decay Asphalt (LE, $18.00) is warmer-toned. Bobbi Brown Gunmetal (LE, $21.00) is similar. See comparison swatches.
The Mineralize Eyeshadow formula is supposed to have "low-to-medium coverage" when applied dry and "more intense coverage and color" when used wet. Most shades have color payoff that is true to the brand's description: semi-sheer to semi-opaque when used dry and semi-opaque to opaque when used with a dampened brush. I tend to find that they apply more smoothly and evenly with a more metallic finish with a dampened brush as well. Some shades can be a little too dry or dusty and do not apply as well with a dry brush. The wear is typically a bit less than average on me--six to seven hours.