Made from stone I hear you cry!??
Ogami make their beautifully designed notebooks from REPAP® paper which is made from 80% calcium carbonate (CaCO3, also known as Chalk!) and 20% non-toxic resins. The calcium carbonate comes from limestone recovered from quarries and from building industry waste. Mixed with resins it makes a paper that is resistant, durable and waterproof as well as soft, smooth and recyclable.
How good is that?