Normal. Sables have a granite-y appearance, and black pastels have an extra line of black around their alien heads and donuts.

Very dark, though! Is she really a she? I've that heard breeding albinos and lavender albinos to dark females and holding back the dark hets is a good way to make super-high-contrast albinos. I've got a really dark male with the rainbow sheen here, too, that I'm hoping to try it with some time.