I... would not recommend going that route.

Bonemass IS the easiest boss in this game, and mining silver without knowing the tricks to do so, is tedious at best, and outright impossible at worst. I NEVER saw an exposed silver vein in all of my mountain explorations, and without the wishbone you would need to hammer an entire mountain with a stagbreaker to "maybe" find a silver node.

You don't want to do this. Beating Bonemass is a piece of cake in comparison to trying to find silver on a mountain with wolves and drakes at your tail and no idea where to start.

The wishbone makes it so much easier to find silver, trust me. Why make it unnecessary hard on you when you don't need to?

Edit: My equip that I used to beat Bonemass in under eight minutes:
Lvl 3 iron chest
Lvl 3 iron greaves
Lvl 3 iron banded shield
Lvl 3 iron mace
Lvl 3 root mask

You also need a poison resist potion and of course sausages, blood soup and either muckshake or turnip stew for stamina.

With that, Bonemass is really easy since you can block all its attacks, except poison, and you have the mask and the potion to deal with that.