Rock with Silver like veins

[smokedNuts]

hi Guys I'm new to the forum. I found this rock and need help identifying it. Its fairly large rock with silver like veins and it is slightly magnetic.

 

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[BosnMate]

Is it magnetic? Does it feel heavy for its size? What range does your metal detector register it?

 

[smokedNuts]

Is it magnetic? Does it feel heavy for its size? What range does your metal detector register it?

Yes the its magnetic. I don't have a metal detector(I want one). I found the rock while cleaning rocks off an old road in CA. It was large approx 40lb black rock with a rusty iron streaks on the outside. I crushed some small pieces with a hammer and panned it. the darker stuff sticks to the magnet like black sand and sliver/white pieces are heavier than the black sand stuff.

 

[BosnMate]

I don't know much about ore, or how to do different tests. But I don't think silver ore is necessarily silver color. If it's really heavy, it might be platinum, but I can't help you as far as testing goes.

 

[AU Seeker]

If the "silver" material is a metal, it should flatten out when beaten with a hammer even if it's platinum, if it shatters/breaks up it's not a metal but some type of mineral.

It's not silver that for sure, native silver would be almost if not completely black due to it's propensity to tarnish.

 

[P.ALLEN]

Chances are if you took a blowtorch to the exposed "silver", the surrounding rock would shatter and pop like popcorn, I suspect micro silica in the matrix. Its definately an ore of some type.

 

[smokedNuts]

Thanks Guys, It does crumble when smashed with the hammer. And I tried the blowtorch method on a piece the size of a quarter it glowed red And after it cooled it looked like metal slag and crumbled really easy. So is it just a really cool rock to look at or would it be worth having it tested?