This question is a follow up to my last one about silver
So silver and presumably all metals of lower and equal hardness can be broken down with muscle and stone tools, by forming droplets, using files or even with ancient machines like the trip hammer.
I am interested in nickel, copper, silver, lead, quicksilver, uranium, gold, tungsten, platinum, iridium and osmium.
Quicksilver is liquid at room temperature.
Lead, gold, uranium, copper, platinum, nickel should be broken up by the aforementioned means, right?
Now what about tungsten, iridium and osmium. With a tech-level of that age, is there any chance to break them down, maybe even to dust?
NOTE: This is not about how to get the elements in the first place. Ive taken care of this in my worldbuilding. Just assume a lump of elemental metal with some impurities drops down from the skies, and needs to be broken up.
+INFO: We are talking about lumps of metal the size of pebbles, ping-pong balls, maybe twice the size max.