Meow Cosmetics’ Crystalline Cat Opal glow powder
I don't see the flashes of blue and green and gold that I normally associate with opals (or, well, fire opals)...but there is the pale pink, almost milky base color with a faint shimmer. (All told, that's a much better look for a glow powder.) I don't know how well this glow powder would work on the deepest skintones - it might dull your skin, rather than adding subtle highlights. I've experimented a few times with using this as...