Fools gold?

[PennyG]

The dark patch on the rock is all gold in appearance .





Gold little nugget at end with a few patches around it.

 

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[DDancer]

Use a pin to test it or a very sharp scribe. If it just dents good possibility for gold as anything else will break up. If it does break up see if its in chunky bits or flat flakes~ pyrite will be chunky and mica flakes. A jewlers loop or magnifying glass will help with any bits.

 

[PennyG]

Use a pin to test it or a very sharp scribe. If it just dents good possibility for gold as anything else will break up. If it does break up see if its in chunky bits or flat flakes~ pyrite will be chunky and mica flakes. A jewlers loop or magnifying glass will help with any bits.

I tested with a stick pin and I could not dent or scratch it.
I found a few more rocks like the ones above.

 

[PennyG]

 

[DDancer]

I'd say you have pyrites then. Looking at the specimens you might have coprolites, fossilized dino poo due to the weathering its hard to tell.

 

[PamDF]

try keep one in half wet condition for a few days.... if it rust then its pyrite :P thats what happened to mine (unintentionally!)