Also wondering what this is exactly... purple blue hue.

[D3ADGURU89]

 

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[Georgivs]

no size, no material, no location, no history... no ID.

 

[xr7ator]

It's a pebble, rock or boulder.

 

[Evolution]

I tihnk what they're saying is a few size reference details might help. Try including something we all know the size of in the picture... perhaps a regulation tether-ball or a pair of size 12 sneakers. I'm not much of a rock hound myself so I'm no help.