Ruthenium and osmium?!!!
So I see you have chosen... death!
Seriously, those two metals have compounds that do not play nice with human tissues. And ruthenium, the less nasty of the two, still has a melting point over 2,300C, making melting it impossible for the typical small-time refiner (osmium's melting point is even higher!)... it also oxidizes rapidly at temps over 800C, so it has to be melted in an oxygen-free environment.
And while ruthenium metal is very inert and nontoxic, the ruthenium oxide produced by heating IS toxic. Fortunately, this is only the dioxide form. The extremely toxic, volatile, and reactive tetroxide requires another reagent in order to form. It's analogous to the nastiness of osmium tetroxide.... though that can form from the osmium metal just sitting out in the air.
So, as others have said, these are two metal extremely hard to refine, with very toxic compounds, and really not worth that much unless it's industrial scale-refining.