Our niobium at its most dazzling

Every year, the Austrian Mint or "Münze Österreich" brings out a silver-niobium 25 euro coin. The niobium core of this collector's piece is produced by Plansee and is always presented with a different design and in a new color.

This year, this special coin sparkles in an icy blue and pays homage to Austria's tunnel building expertise.To obtain the color demanded for each year's coin, we have to process our metal in very specific ways: An anodizing process forms an ultra-thin oxide layer on the niobium core. The thickness of the oxide layer determines the color. The refraction of the incident light causes the oxide layer to shine in a range of different hues.

Interested? You can order the 25 euro coin directly from the Münze Österreich Online Shop .