black rock found on beach

[yonaguni]

Found this black rock..it is very lite not much weight to it....i thought it might be petrified wood..found on beach in NJ usa

 

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[The_Piratess]

Nope. Petrified wood is actually heavy like a stone. Actually that looks like a pumice stone to me and yes they usually are lighter in weight due to the many pockets of air holes inside.

 

[SkaBa]

Not petrified wood.

Maybe coal or asphalt.

 

[Mud Hut]

Black rocks matter, too!

 

[The_Piratess]

Not petrified wood.

Maybe coal or asphalt.

That too. Would actually make more sense seeings where you found it.

 

[yonaguni]

asphalt dosent make sense too me ive seen tons of that this is shiney..like coal but i know coal..its heavier then this...

 

[relic lover]

Looks like coal that was worn Smooth by wave action

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[relic lover]

I guess you could hold a lighter to the thin edge of it and see if it smokes afterwards. If you recognize the smell of burning coal it should be easy to tell

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[Mud Hut]

See anything that matches? https://www.google.com/search?biw=1....7.0....0...1..64.psy-ab..0.3.346.QFvuWnIZ77g

 

[Eu_citzen]

Slag of some sort could be possible.

 

[yonaguni]

i think it is coal burned it..it burned gave a scent like a blacksmith shop....the burned spot turned bluish...