I would be more interested in TELLURIUM. "Tellurium is a...

I would be more interested in TELLURIUM. "Tellurium is a metalloid chemical element which is used in a variety of industries, primarily in the form of an additive to an assortment of compounds and alloys. It is relatively rare on the Earth's surface, and it is usually found in combination with other materials, such as gold. Tellurium can be isolated through chemical or electrolytic processes. Because of its rarity, the element can be expensive, especially in a pure form."
Source: http://en.wikipedia.org/wiki/Tellurium