I weigh them on a tiny jewellers scale.....
I place them on a charcoal block and melt them with my torch.....
and then I put them in some jewellery pickle to take off the firescale.
Ok, I know they don't look very promising when they are fresh from the torch, but when cleaned they look great, very organic and nicely textured. If a shinier finish is called for a bit of sanding does the job nicely. I'm using some at the moment in a pair of earrings, here they are in the early stages, soldering done and now about to sand and refine the finish before the resin goes in.