Help identify this rock for me . A magnet will stick to it in some spots

[Jasonaustin]

 

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[fuss]

Interesting for sure, nice find. My first thought was a Gabbro but after a closer look at the images I think it is more likely a metamorphic rock possibly Serpantinite? or something similar. Where was this found?

 

[Jasonaustin]

Arizona...I've got some other rocks I'm not sure if also

 

[Kray Gelder]

Weathered coarse grained granite, IMO. Really crumbly if you rub it? The individual crystals of different minerals are losing their bond.

 

[Back-of-the-boat]

Maybe chlorite-schist

 

[Jasonaustin]

It's really heavy and solid and a magnet sticks to it in some spots