hardened mud brick, aged mud brick

I think it would be cool if there were a more complicated mud brick creation. 

mud bricks could be in 3 phases ,, soft mud brick, hardened mud brick, aged mud brick. 

soft mud bricks could be hardened in a furnace etc. and hardened mud bricks could be aged in a furnace etc. 

aged mud bricks might look like they are worn with aged color that is both darker and bleached in patches, and the grass is poking out a bit. hardened mud bricks might be a darker color than soft mud and have a bit of cracking, and soft mud bricks can be the existing mud bricks.