Titanium has superior structural integrity and is three times stronger than steel. Titanium is very light weight (1/3 as much as gold). Titanium also plays a role in gems. Traces of titanium dioxide impurities cause the asterism phenomenon in star sapphires and rubies. Blue sapphires can get their blue color from traces of titanium as well.
Although a very hard and durable metal, titanium can still be scratched by abrasive materials like rocks or hardened steel tools. The best way to ensure that your titanium jewelry maintains its shine is to bring it into your local Helzberg Diamonds store for a complimentary cleaning and inspection, or by caring for it at home with a solution of warm water and detergent-free soap with a toothbrush.