The Silkie feathering isn't dominant (but the 5 toes trait is). I wouldn't be a bit surprised if she's a Silkie mix. Looks similar to a Black Star also. Maybe a Silkie/Easter Egger mix. Certainly looks like a female. Lucky you and lucky her!
Well she said the skin is white, not black. Just the leg scales are dark.
Actually what she said was: Dark blue-black beak and legs. I think some people took that to mean black skin somehow.
Respond to this one, too. I'd love to see a picture lol! Black feathers with gold around it's neck sounds like Black Star to me (which are mixes themselves anyway). The extra toes could've come from a Silkie a few generations back. It doesn't have to mean a Silkie was either a mom or dad.