Niobium has an atypical outer electron orbital configuration, featuring a single valence electron (12, 1) instead of the (11, 2) exhibited by vanadium and tantalum. In air, it will oxidize a beautiful light blue over time, so don't wait long make it yours today.
Niobium cathodes turn into a spectrum of colors based on the electrolysis voltage. It is alloyed with Sn or Ti for superconductors and allegedly superconducts in elemental form around 9K.
We also stock Niobium wire. If you need larger quantities, block, sheet, foil, or a different diameter, enquire for a quote. Minimum custom diameter or surface treatment order $500. COA available upon request.