Niobium powder.

 
Niobium machined bar (3N).

 
Niobium foil.

 
Electron beam melted, zone refined niobium single crystal.

 
Electrolytic crystals of niobium.

 
Niobium pellets.

 
Wah Chang Niobium medal.

 
Electron beam melted, zone refined niobium rod.

 
Vacuum melted and annealed Nb slices.

 
Nb crystalline powder prepared by electrolysis.

 
Niobium crystal bars deposited from the gas phase.

 
Niobium ring deposited from the gas phase.

 
Niobium sintered bar.