Update : I think it might be marble from the area, i know a lot of train stations in France like to use local rock to look more like its background.
I couldn't find online which rock it is, but i found the architect and his firm's website so that's cool. It's just going to be one of those things where in a few years i'll take one glance at those pictures and immediatly identify it like " what a dumbass i was those years ago"
But i really wanted to find info online of it's age and origin but :(
Maybe it's the pill for motionsickness (which makes me sleepy and completely high), maybe it's the fact i've had a fever for 3 days or maybe it's because i slept 5h in the last few days but oh boy the floor at my train station is freaking cool i need to know more
It looks like it's loads of bivalves but i'm really bad at identifying even when i'm not tripping