Found big rock...need identification please

[Hotwheel]

Hi, found this rock hunting northern Saskatchewan and not sure what it is. it is big at 42 pounds. has a crystal structure which is hard and black spots which appear to be melted rock. You can zoom in after clicking on photos for better look.

 

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[MUD(S.W.A.T)]

Looks like an old piece of sea coral.

Keep @ it and HH !!

 

[bootybandit]

Looks like "Live Rock" from a reef.

 

[Hotwheel]

thanks for quick replies....it was found in the forests of northern Saskatchewan, Canada so its not even close to an ocean.

 

[Igyjastabay]

Weathered quartzite conglomerate.

 

[Pointman]

Quartz or granite composition.