strange texture of eggshell, sandy? PIC

[petalumapaul]

Things are going well in my coop. Ten hens, most of them two years old, three of them one year old.

I got an egg with a strange, sandy finish on it yesterday.
Strange.

I don't get this often. Just thought I'd post it.

 

[Pendragonz]

Wow, that's kind of a cool looking egg. Thanks for sharing.