Share 'Stages of Chocolate Melting Points'

Hi, I’ve read somewhere in the internet, but now when I try to go back searching for it, I couldn’t find the information. I’ve read that chocolate have 5 melting stages, and in order for the chocolate to still stay solid in your hand is when you reach the fourth stage. How do we know what stage is our chocolate is in? Or if we conche and temper it normally will it directly go to the fourth stage?…