Why won't my TNT blow up dirt

Why won't my TNT make dirt blow up

*What I expected to happen was the dirt to explode
Describe what you thought should happen here's as the dirt to explode

*What actually happened was I didn't do any thing
Describe what happened herei did not blow the dirt up but stone will

Steps to Reproduce:
1. Put a step by step guide on how to trigger the bug here
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