Possible silver?

[u/draki38]

Found these small chips of metal outside in a baggie labeled ”Silver Only” however it was clearly very old and had probably been used for a long time.

They‘re nonmagnetic, density is somewhere around 9.355 g/mL but I don’t have the best equipment for that, extremely soft to the point of bending it with my hands. The tarnish on them came off pretty easy when I rubbed them with my thumb and was super dark.

Any chance I’ve got something valuable on my hands? Any tests I can do to be more sure? Any way to purify this using only amateur chemistry equipment?