DIY Optical Bench Idea

Wasn't sure if i should post this here or in the experimental thread but here it goes, sorry if i'm mistaken.

Anyways, i have several nice lasers but totally lack an optical table of any sort, i DO however have an 8' slate pool table that i have no use for and plan to re-purpose one way or the other.
My question, would slate make a good optical bench? if so, what steps should i take in it's fabrication?

Thanks in advance.
-Fritz