Examples: Titanium has been heralded as the most effective metal used in body jewelry due to its bio-compatibility. With virtually nickel-free properties, titanium has less incidences of skin allergy than any other metal. It is also more durable and almost indestructable. Most titanium jewelry goes through a process called anodizing, which creates the different colors. Titanium jewelry is more expensive than others, but is certainly worth it for those with nickel allergies.

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See just how versatile this metal really is and how it is used for everything from bicycle parts to space craft.