Renewing

Certain resources are renewable in default nodecore including lux and lode.

Dirt

You can renew dirt by leaching Humus or by putting Humus next to [[Grass] and waiting for it to spread.

Stone

You can renew stone using concrete. Concrete mix costs gravel and ash and gives you stone when dried. You can then turn the stone to cobble and pummel it with a pick to form gravel. After this you end up with gravel and 4 stone chips. If you do this process twice you can pack the 8 stone chips into cobblestone. This basically changes ash into stone.