For a couple of days now I've been getting an egg just like this one. It's a bit larger than the usual eggs I've been getting. It's ALWAYS laid on the ground in the run. Never in the nest box. It's got this matte purple-looking finish with brownish "scratches" on it. Well yesterday I was cooking and grabbed two of these to cook with, and when I rinsed them under the sink, they instantly turned brown. Like it was a wierd coating on it. Has anyone seen anything like this?? Is this a characteristic of a certain breed? (I've got about 16 different breeds) I actually thought that it was being laid by my Rouen duck hen, but we found HER first egg in our community chicken nest box yesterday.