Who said paper had to be made from trees?

Karst's tree-free designs make for a sustainable alternative to traditional notebooks that's impossibly smooth and brilliantly white. Made from 100% leftover calcium carbonate, an abundant natural resource, and a by-product of construction sites and quarries.

To make stone paper, calcium carbonate is collected, washed and crushed into a fine powder-like chalk, then mixed with limestone and a non-toxic resin. It’s then fed into a machine that rolls and stretches it thousands of times to create the end product, which is like traditional paper but made without trees.