I get asked what to do with graveyard dirt all the time. In short, what you do with it depends upon the spirit connected to the dirt. In this post, I will lay out the basics concerning magical uses for graveyard dirt.
From specific graves:
From the crossroads of a graveyard or cemetery:
How do you know the character of someone who was buried there? You have to communicate with the spirit who inhabits that grave. That, however, is a conversation for another post.
I hope this clears up graveyard dirt for you.