Well I blew this ID---
But--if it were "polished" it would not show any of the orange peel texture that your marbles shows.
A polished marble will show no defects like thisāthey are very hard to spotāāpolished marblesā. Sometimes it takes a loupe---I just hate a āpolishedā Machine Made Marbleājust hate the effort that went into trying to rip a collector offānothing new for sureājust educate yourself and move on.
The older collectors that may know the difference are slowly dying off and u-tube amongst others are more than willing to show how to do it.
Sorry to Rant onājust my feelings here.
MarbleāOn!!