Hey all- I smelted down some diving weights today. I figured they'd be just about pure (I know, DV's can be anything) but these came outta the ingot mold looking frosty, in fact identical to my WW ingots and they didn't sink in the center of the ingots like PB does as it cools. Would high antimony content make the ingots look like WW's? I have no reason to believe there's zinc in the batch.
I figure I'll wait a week or so and then compare hardness to WW's and see.