Remove the handles and weigh them, the tungsten one will be
obviously heavy, the titanium one will feel rather oddly light (I
have a 3/16" Ti airframe bolt that feels like plastic til you drop
it), and the niobium one well it will be in between (no really!),
also the niobium one will be easy to bend, the tungsten one won’t
bend (it will break if you try) an the titanium one will be rather
springy, but will bend in the end…
There you go two ways to get to that particular Rome. I’m sure that
there are other roads to your destination still out there.
Cheers, Thomas Janstrom.