Gray-Purple Eyeshadows!!! MAC Shale vs. NARS Ondine

I am in love with this new eyeshadow from MAC. It is the moonlight purple-silver that can both be used by itself over your entire lid, at the inner or outer corners of your eyes. (Inner meaning the inner part of the shading chrome). I haven't heard this shade "Shale" being talked about much, but in my search for any kind of MAC eyeshadow, I came in contemplation with "Hoodwinked" and this one. I seemed to have owned way too many gold/brown shades, so I went for this shade, that I only had one that was slightly similar to this one (which I will get to later)

MAC eyeshadows are one of the best pigmented and textured eyeshadows. They blend so easily with other colors, and they remain its true and prominent color on the eyelid as well as in the box!

I'm comparing this with what seems to be pretty identical color, the NARS "Ondine". I have a swatch of it in the picture below. The left is "Ondine" and the right is "Shale".  

You can see that they are in fact pretty different, more obvious when you see it in life than in pictures. The "Ondine" is a warmer brownier purple, whereas the "Shale" is a gray purple that has its own complexities-- which is what I like about it! I prefer MAC's "Shale" over Nars "Ondine" (which I still love) for several reasons. One, is that though I'm not sure you can tell by pictures, the pigmentation of the MAC was much, much denser than the Nars. I'm not speaking in all of the MAC and NARS eyeshadows, just these two in particular. Also, the color payoff of the MAC is so much prettier on skin than is the shade of Ondine. Texture wise, I have to say, the MAC "Shale" is creamier (it's a satin finish) than the Ondine, which can feel slightly "powdery" in comparison!

What I also love about it is that grayish eyeshadows can end up looking really dusty or "dirty" on the eyelids. There are colors that can be hard to digest, and I was afraid that when swatched it might look pretty, but on my eyelids, it'd look "dirty". But it doesn't! It's just as pretty as a swatch as it is on the eyes! (I don't know if I could speak for all skin tones, but for the light/medium yellow undertones, this'll work!)

It's also very buildable as mentioned before. One sweep across the eyelid can do if you want to use that as a base. But if you want to build it as a shadow at the outer corners, you just have to pack it on and blend it in. The color intensifies. In different lightings, it'll look gray, silver, and/or purple!