Niobium metal is a rare, soft, grey material, which, when exposed to air, quickly forms a protective oxide layer. Niobium metal is not used widely, one application is as additive to superalloys, which have to withstand very high temperatures. Furthermore, Niobium metal is sometimes used as mint metal for special coinages, because Niobium metal can be anodized to form a colored oxide layer. The thickness of the oxide layer determines its color.
Amazing Niobium metal standard density cube 10x10x10mm, 99.99% pure. The sample weighs 8.57 grams which is the theoretical density of the Niobium metal element. This cube is amazing for any science classrooms, schools, universities and collectors. Pure Niobium metal cube for element collection.
Superb Niobium metal cube 25.4x25.4x25.4mm, 99.99% pure. This cube is amazing for any science classrooms, schools, universities and collectors. Pure Niobium metal cube for element collection.
It is a very heavy cube!