What is chalk made of?

Kathleen
by Kathleen

I'd like to know what is chalk made of? There's a lot of talk on this site about using chalk paint, some really beautiful ideas. Before I go ahead and try any of them I'd like to know that it's a safe material, since I only like to use the most natural and environment-friendly substances in my home. So before I use chalk paint, I'd like to know what is chalk paint?

  4 answers