Deposits on green eggshell

[John T]

Can anyone tell me what these deposits are on this egg? It is only on my green eggs.
http://www.flickr.com/photos/26133564@N05/2455059884/

 

[mmajw]

I get those on some of my eggs as well. I just always thought they were some sort of calcium deposit.

 

[wynedot55]

they are calicum deposits.