What kind of rock is this?

[Fara]

Hello everyone.
I found this rock.
The density is about 3.6.
Hardness is high, about 8-9, and can easily scratch on porcelain and glass.
Light can pass through it. I saw samples like it on the internet as "Lonsdaleite diamond" or "Lonsdaleite meteorite"!

But, what's your guess?

The pictures are attached.

 

[Garscale]

I'm guessing it is a nice quartzite shaped by someone long ago. Native crystal ball? Sweet find.

 

[Toecutter]

Looks like a marble size is about the same

 

[Kray Gelder]

Yeah, I'll say marble also. Why or how would a diamond form a sphere? I looked at images, and I think those people selling them show a model of graphite, with the balls representing carbon atoms, and they want you to believe the balls can be found in nature. Funny.

 

[Fara]

thanks...