Grit and Egg Shell

[cherrypick]

I need to understand please if egg shell is grit or is it just nutritional calcium?

 

[rosemarythyme]

Calcium.

Grit should be very hard so it won't immediately start breaking down. Granite is probably the most standard choice for grit.

 

[cherrypick]

Calcium.

Grit should be very hard so it won't immediately start breaking down. Granite is probably the most standard choice for grit.

Thanks!