MAC Mineralize Eyeshadow Quad A Medley Of MauvesnMAC Mineralize Eyeshadow Quad features four coordinated colors of eyeshadow. Unlike most powders that are pressed into traditional metal pans, Mineralize Eyeshadow is moulded onto small round terracotta tiles and carefully baked for 24 hours, allowing for an exceptionally sheer and light application. Each eyeshadow features the brand's unique mineral-rich yeast extract, which blends 77 minerals that nourish while providing silky-smooth, buildable coverage.