Hello.
Firstly, great thanks for you work! I'm very excited about release of ProjectRed for MC 1.12!
Secondly, I've suggestion to improve compatibility with other mods.
There are mods which already have marble and/or basalt (such as Chisel, Quark, Astral Sorcery). All such mods use stoneMarble and stoneBasalt OreDictionary names for these materials.
I suggest to add these names for marble and basalt blocks to make ones interchangeable.

I sware they already had OreDict names..

@covers1624
I'm using ProjectRed 4.8.6.62. In this version marble has OD name blockMarble, basalt doesn't have any ones.
I suggest to use stoneMarble and stoneBasalt names (instead or in addition) because:
a) most mods use such names to unify these materials;
b) such OreDictionary names correspond ones for vanilla rocks (stoneAndesite, stoneDiorite and stoneGranite).

I agree. Being able to chisel marble and basalt back and forth would be a nice addition.

next question, BasaltCobblestone or just Basalt to receive the ore dict name.

I think basalt - the smooth one that generates should be ore dict-ed.

@covers1624
Just smooth variant of marble and basalt.