Mineral Paper is similar to traditional wood based paper, however, it is made with calcium carbonate from rocks rather than tree pulp. Mineral Paper is considered to be an environmentally friendly alternative to traditional wood based origami papers. Mineral paper is 80% calcium carbonate bonded together with a small amount of HDPE (plastic) which gives the paper a unique feel and some very useful properties. It’s tear and water-resistant yet very suitable for folding. Mineral paper is great for outdoor decorations, toys and in projects where a more durable paper is desired.