I scored some marked pewter items at a thrift shop and some questionable stuff that I melted separately. This stuff had a dark grey finish, felt pretty dense, and was more malleable than the known pewter items. It was just marked "CHINA" on the bottom, and had some brass wire and ugly stones cast into it around the edges. The pewter ingots came out normal - bright shine, hard, and goes "TINK!" when you tap two together. This other stuff ended up frosty-looking, scratched with a HB pencil (BHN 14-15 best I can tell), and gives more of a "TANK!" when you tap them together. I'd WW ingots would be a "TUNK!" and pure is more of a "THUD!". Hell, you know what I mean.
Any educated guesses on what this mystery metal is? Any other tests I can redneck at home to get an idea? If it might be lead with tin, I could use it for non-specific alloy sweetener for a batch of vanilla WW.
***EDIT - reading other threads, it is clear that "leaded pewter" is a real thing. Still pose the question regarding ways to divine a swag at the constituent value.