# Formation energy and Energy above convex hull as indicators of stability

I was trying to understand some indicators about the stability of materials (that basically tell you whether it can be synthesized or not.. right?).

Specifically, I'm trying to link the knowledge of formation energy and energy above convex hull.

Can you explain me a little better and eventually make some examples of value ranges for these two parameters (formation energy and energy above convex hull)?

I'm asking because I'm trying to put up some datasets to work with but still have little domain knowledge.

Thanks!