Hematite is a natural substance, that when polished it has a black grey sheen, which is very attractive. For many years it has been used for making jewelry which can be used for many different occasions. It has known favor amongst royalty since Egyptian and Greek days. Named after the Greek "haima" for blood, it will streak red when rubbed against a harder substance. Many people believe it has properties which give the wearer a feeling of well-being or optimism and relieve stress.