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MAC Engaging mineralize eyeshadow is limited edition from the 2007 Antiquitease collection. Although I haven`t found a dupe for the pink shade, I`ve found dupes for the bottom shade. Of course the textures aren`t the same because one is a baked mineral eyeshadow. I`ve also heard the bottom shade from Engaging is similar to Amber Lights, and the two from Coastal Scents are dupes for Amber Lights.
All photos are my own.