What the hell could this be....anyone?

[wilfndgold]

 

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[BurntBear]

That's pretty wild. It almost looks like a silica in the middle; kinda olive colored. The black is strange. Other angles maybe?

 

[rodoconnor]

Did that come out of your pegmatite? It's got a lot going on with it

 

[wilfndgold]

No it didnt come from the peg. I think it was part of some skarn about 25 miles away.

 

[wilfndgold]

Maybe Olivine? jes, no?

 

[Eu_citzen]

I was going to say skarn, looks like you figured it out yourself.

 

[DDancer]

Looks like a good candidate for olivine. I've found similar specimens in pegmatite over the years.

 

[Tree!]

Looks like a quartzite with the green being serpentine. California?

 

[ARC]

Dino Dung...
Dinosaur poop.