Weird Easter Egger Egg

[AliciaM]

This is the second egg ive gotten like this.. Not sure exactly who is laying it as I have at least 15 easter egger girls..The first one wasnt as bad, the "ink" just kinda washed off when we washed the egg..The egg was still blue/greenish, just not as bright.. I also had one that kinda resembled a football in coloring.. a white/lightish colored ring around each end..Kinda cool, but weird..
Any ideas on why this is happening??? How to correct it??

 

[azygous]

I've seen eggs like that from time to time. It's just extra calcium deposits. It's not harmful or significant. Normal eggs should resume.