Mithril

White golden precious metal with magical properties. If pure, mithril is pliable and similar to gold when found. But if it is forged the right fashion it becomes an adamant metal stronger than steel. Its magical nature makes it extremely resistant to damage while still remaining supple. Protection rings are often by the laws of sympathetic magic made at least partly from mithril. It is rare and pure mithril is about 20 to 30 times as valuable as gold.