Weird eggs

[Tuch baluch]

Hi, so there has been one egg like this before with my flock,but I'm wondering if I should keep an eye on this or if it's ok or what I should do. The egg seems to have something on the shell, but I'm not sure. If you have an idea of what it is or what to do, please let me know.

 

[Eggcessive]

Those are mineral deposits due to calcium, and are fairly common. Here is a good link to read, and possible reasons:
https://www.backyardchickens.com/articles/common-egg-quality-problems.65923/

 

[Tuch baluch]

Those are mineral deposits due to calcium, and are fairly common. Here is a good link to read, and possible reasons:
https://www.backyardchickens.com/articles/common-egg-quality-problems.65923/

Thank you.