Anybody buy dental scrap? Refining?

[WhyKnow]

It looks like I just got some "scrap" 41% Ag without any Hg in it.
300gm of 41% for less than $60. Hope I got a decent deal. Value of the silver is about $143 then subtract refining.
Googled dental scrap and see a few places that do it. Has anyone sent any in? I saw some nasty teeth with gold crowns getting sold on the bay.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&_trksid=p4340.l2557&rt=nc&nma=true&item=330542243540&si=pnB05zmXvRlGQlFZsAH0Cas02IA%253D&viewitem=&sspagename=STRK%3AMEWNX%3AIT
http://cgi.ebay.com/DENTAL-GOLD-CAPPED-MOLAR-TOOTH-SCRAP-16K-4-7-GRAMS-/260753551437?pt=LH_DefaultDomain_0&hash=item3cb61f704d

[Montecristo]

Make sure to have it checked for palladium also.

[WhyKnow]

Make sure to have it checked for palladium also.

Yeah, some of that yellow gold is only 58% AU, but has 27%Ag and ~3% Pd. The bidding on that tooth with a cap seems crazy.

[Gcubed]

Sounds to be that it's amalgam scrap that has been retorted. If that's the case, you've got some nasty silver/tin scrap. I swore never to let that back in my circuit.