Volcanic rock

[minermatt]

This was found in San Bernadino Mtns. Non magnetic. Very heavy ( approx 40 lbs).
Polishing up Amber colors.
What do you guys think of this. Your comments are appreciated. Sorry for double pics, i'm trying multiple devices which I'm unfamiliar with. Cheers!

 

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[bootybandit]

Lava rock is usually porous and light.

 

[Garrett424]

I like it.
Although detecting is my "thing" these days, I've always been a rockhound and still pick 'em up when I see a good one.
Hunting rock "treasures" led me to detecting and other treasures.