# Can high-tin bronze be made sharper than low-tin bronze?

I am not sure how sharpness is measured, but I do know that certain materials can be designated sharper than others, for example obsidian is said to be the sharpest material:

The prismatic glass blade is infinitely sharper than a honed steel edge

So my question is, will a honed edge of high-tin bronze be sharper than a honed edge of low-tin bronze, and if so why?

• So why do so many articles and sources claim that higher tin bronze can be made sharper, higher tin bronze is used in the edges of the blade in bimettalic swords. the edges have more tin content, making them harder and capable of retaining a sharper edge Mar 30, 2013 at 14:56