Forget about  boring gold, silver and platinum. The word of the day is NIOBIUM. This matte gray metal is rarer than gold and more precious than sterling. It’s a refractive metal that produces brilliant colors when it’s heated or anodized -a process in which metal is dipped in an electrically-charged bath.

In both anodizing and heating, a natural oxide with a very high refractive index forms on the surface of the metal. Depending on its thickness, this transparent oxide layer produces interference colors, like a beetle’s back, or oil on a puddle. In the anodization process, Niobium will display different colors on its surface, depending on the voltage of electricity applied. The process is repeated to get more than one color on the same piece, and the colors never fade or tarnish. Absolutely stunning!

Niobium is also environmentally clean, lightweight, and hypoallergenic. It’s used in a lot of body jewelry- because it’s completely non-reactive with human tissue. It’s safe to wear for even those most sensitive to metal allergies, and the beautiful colors are endless.

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