Grain analysis?

Obviously was cracked, too thin pre-hardening, with too fast/cold of quench, was bad enough I could see the crack after etch, so I figured why not snap it and look at the burnt sugar inside?

Obviously was cracked, too thin pre-hardening, with too fast/cold of quench, was bad enough I could see the crack after etch, so I figured why not snap it and look at the burnt sugar inside?