Vocanic rock???

[reptwar1]

Found this in Dardanelle on the beach of the Arkansas river. Doesnt seem magnetic although my magnet isnt powerful. Small quartz looking stones stuck in it. Vocanic maybe?

 

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[DanielFrew]

Is it really light? I have found some gravel filled tar ball along the river. Most of them have been very porous and light.

 

[reptwar1]

It isnt really heavy. I doubt its anything cool, my dad used to find arrowheads laying in our back yard, but I looked for years and never found one...damn the luck