MAC Rich Core is a moderately warm-toned, dark plum with a pearl finish. It is a permanent eyeshadow that retails for $20.00 and contains 0.04 oz.
MAC Rich Core Extra Dimension Eyeshadow ($20.00 for 0.04 oz.) is described as a "dirty aubergine." It's a subtly warm-toned, burgundy with a metallic sheen. It had good color payoff both wet and dry, though the damp application was smoother and more metallic. It wore well for five and a half hours dry and eight hours damp. It seemed slightly more shimmery in this version than previously. See comparison swatches / compare dupes side-by-side.
A liquid-powder Eye Shadow with prismatic reflections in ten shimmering tints. Impact ranges from sheer crystallized light to a highly polished metallic effect. Lasts up to 6 hours.