Natural or?

[BC1969]

Okay, here's some more of the rocks? That I've brought home.
Partially worked?

 

[galenrog]

All natural. Sorry.

Time for more coffee.

 

[quito]

none of those are artifacts

 

[The Grim Reaper]

Agreed, all natural.

 

[Treasure_Hunter]

Sorry, agree with the others all are natural rocks.