Guinea eggs

[bowie1]

I am incubating guinea eggs but the shells are very hard. I dropped one on concrete and it didn't even break. Is this normal? I'm so afraid the babies won't be able to get out of the hard shell when it's time

 

[GuineaFowling]

Fear not. Guinea eggs are very very strong. My male guinea often rolls eggs out of a nest box that is raised four feet and they never break. Its a hassle trying to crack them open for breakfast.The keets will easily hatch.