working top made of granite or similar

dear sir

hi good morning im a neawly subscriber and i've got a question,i need to do work top of about 6ft*3ft and the material is of small pieces of about 3"*3" granit or similar and i need to attach it to layout of wood or metal sheet,i though that's its best thing to do it with a type of silicon or rubber so it will be a bit elastic under so it want't breack up and will stick aswell with the layout.

what do you think,

thanks jack