silver heavy rock

[cekinger]

My grandfather found this rock on a trip to southern ohio to get a load of coal with his father. he has never been able to identify it and is now very sick i would love to be able to tell him what it is he found all those years ago. http://imgur.com/a/V8fMG

 

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[Jim in Idaho]

I'd like to see a detector waved over that, and see what the VDI is that comes back. Also, a specific gravity test would help. In any case, it's a nice specimen.
Jim

 

[StoneWhisper]

Similar looking to that of iron ore or an alternitive slag

 

[Eu_citzen]

Magnetic? Can a knife scratch it? If rubbed against a unglazed piece of porcelain, what color do you get?

 

[cekinger]

Not magnetic, scratch it yes, it is kind of brittle actually

 

[Eu_citzen]

What about the last test?

 

[HeavyHitterCKBM]

Sorry to hear about your grandfather being ill. Don't take my word on it but it reminds me of a type of Platinum or Platinum ore, very nice whatever it is, let us know if you find out for sure.