MAC Mineralized Eyeshadow in Mineral Mode is from the 2011 limited edition Semi-precious collection.
I purchased this not really sure what the color might be in real life, I thought it would probably be a base coor even if the color's not what I expected.
In the pan it looks like a shimmery white eyeshadow base with loads of blued grey/earthy red veining.
It works as an eyeshadow base color / overall wash, but does not have very obvious color payoff.
From a distance it looks like a beigy-white base, but I suspect it's just blending in very well with my skin color (instead of having an actual color on its own). Hrrrmmm interesting shade, not something I expected.
Not a must have, but worth considering if you are missing an eyeshadow base something like this.
p.s. in hindsight, I probably got a mineral mode with VERY little veining which means I got something really different looking to like temptalia's swatch here
It's a bit ridiculous the same shade color can vary this much though...