MAC Triple Impact Extra Dimension Eyeshadow ($21.00 for 0.07 oz.) is described as an “opalescent lavender with violet pearl.” It’s a cool-toned lavender with a frosted finish and lavender shimmer. MAC Amethyst is warmer and much more sparkly. OCC Datura is very similar in color but has a smoother sheen. MAC Light Voilet is pinker and has larger sparkles.