stone

it adds a simple cubic rock.

crafting

stone(rock) 20
s=stone(default) e=empty
(e)(s)(e)
(s)(s)(s)
(e)(s)(e)

coblestone(default) 1
s=stone(rock) e=empty
(s)(s)(s)
(s)(s)(s)
(s)(s)(s)

how to get

clone or download this repository.