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Can anyone please help me I.D. These rocks

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I found this first rock under a tree on a hill in Colton California. It weights around 200 lbs, I really like the cut threw it. It looks like maybe some platinum,silver, and some gold.? I can take closer pics if needed.

These other three i found at an old gold mine in the L.a. Mountains. I busted open a 100 lb quarts rock and these are the samples I took home.

Thanks for the help, this web site is great!






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I don't see any evidence of platinum silver or gold in the first one. Like Haderly said, looks like gneiss.

Also agree with Haderly on the second one. The shiny bits I see in the photo look like mica. Being that you found it at a gold mine, there's a chance it could contain gold, but the only real way to find out would be to send off to be assayed.

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:old: It is possible for someone to add some footnotes on to these pictures noting which precious metals are which, if there are any. Part of the problem I have run into is there are lots and lots and lots and so on of rock pictures but none that identify precious metals within these rocks.

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