I have never seen one of these, can you name it?!

[The DumpsteR BandiT]

Good afternoon! 

  I live on an old greenery and find marbles a lot. I found this one in an old fire pit. This marble has some unique patterns but I am also one of those people who can see something in everything.  It feels rough. I can feel each individual "speck" / "freckle" (I am not sure of the proper term.), but yet it is still smooth. A predicament wrapped in a conundrum... Just like me. 

 

Anyone familiar with this type? 

 

Thank you for your time and help! I'm very grateful!

[Chad G.]

It's a "frit" marble, not sure exactly which company  ??  A lot of different companies made similar marbles, Vacor still produces Frit type marbles.