I.D. Help Please

[hunts with son]

This rock was in a box lot I won at an auction. I didn't see it until I got home and my 8 year old son found it.

I have no idea what it is. Here are a few pics, some are magnified. Thank you!

 

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[StoneWhisper]

In the immortal words of Charlie Brown: "All I got is a rock" via the Halloween special.. But you have a rock.. with holes that might have contained bronze, brass maybe even gold.. I believe and judging by the appearance.. these are not man made holes. But that something was in them and someone forcible removed what ever it was.. I'd even go as far as to say.. maybe this rock was painted at one time and the gold paint is whats left within the holes.

 

[hunts with son]

In the immortal words of Charlie Brown: "All I got is a rock" via the Halloween special.. But you have a rock.. with holes that might have contained bronze, brass maybe even gold.. I believe and judging by the appearance.. these are not man made holes. But that something was in them and someone forcible removed what ever it was.. I'd even go as far as to say.. maybe this rock was painted at one time and the gold paint is whats left within the holes.

Love that special, grew up watching the peanuts!
Thanks for the info

 

[Red James Cash]

I think the holes were made by water dripping on it.I have seen granite steps in 300 year old houses with similar holes,the holes in the steps were made by water dripping on them.

 

[hunts with son]

Thanks for the reply

 

[Eu_citzen]

Likely cavities left when something softer then the black rock eroded away. (likely the yellowish stuff we see)

Try and see if you can scratch one the the "balls" with a knife - preferably somewhere not to easily noticeable.
Check under magnification for the scratch. If you scratch it - chalcopyrite if not - pyrite. That's my guess.

 

[hunts with son]

Thank you, I'll give that a try!

 

[hunts with son]

I tried scratching it and it was less crystal like, actually softer and a small piece broke off. Still not sure what the heck it is. Into my sons rock collection it goes!