Amalgam? Aluminum? Weird rock? Take a guess...

[Dig'em]

Here's an odd one I found the other day while nugget shooting. I was scanning in a hole probably 4' deep and hit this. At first looked like a rock but didn't sound like a hot rock so I cleaned it up in the creek. Thought it was maybe amalgam but didn't seem heavy enough. Looks like metal, maybe aluminum. Scratch test shows it's not lead and weighs 27.7g. Any ideas? I'm thinking it's a chunk of aluminum that's been rolled and formed by the river. I wish it was a big chunk of amalgam or platinum!

 

[bigfoot1]

no way to know from photo.this is where an acid test kit pays off.amazon has them cheap.I like the puritest kit with all the accessories,has solved many a mystery for me.

 

[Dig'em]

Thanks, that's what I was thinking. I have some suggesting to do a specific gravity test also

 

[tamrock]

I think it's a few empty aluminum beer cans after they were tossed in a campfire.