Antimony?

[Ken]

I have a couple of bricks of material that I think may be antimony. Is there a way to identify it. I broke a piece of it off with a hammer!!! If it is antimony, is there a market for it here? The only marking on it is ASARCO. That was a smelter in El Paso.
Thanks

[lwknight]

I think that antimony will break of in large crystals. Its kinda whitish grey in color.
The cost of antimony is $8.00-$10.00 per pound.
The thing is that you can buy Rotometals " Superhard" and count the lead at $1.00 per pound and the antimony comes out under $8.00 per pound and its already alloyed in which by the way is a PITA to do with pure antimony.