How much dwarven ore can you find in the game?
Is it sold somewhere?
I'm still holding 2 pieces from Tarant and I'm hesitating using them for the featherweight axe...

Aren't there three pieces found in Tarant? Or am I thinking of something else? Been a while since I played through.
Other places to look are the Dwarven mines. I don't know if the Wheel Clan smith sells any, but might be worth a look.
As for how much you can find in the game, I'm not sure. However, I think only the Feather Weight Axe actually needs the ore - the others use pure ore.

Elite plate demands "dwarven steel", which I guess is made using dwarven ore...
4 pieces in Tarant in the warehouse, by the way.

I don't think it's possible to make Dwarven steel yourself, unless there's a modded schematic for it. You can buy it from the Wheel Clan, though.
But do correct me if I'm wrong!

Good to know I can buy dwarven steel! Thanks!
Still, I'd like to know if you can buy dwarven ore, just in case...