What is this heavy dark rock

[oldbattleaxe]

I had purchased a large box of petrified wood, geodes, and some small unusual rocks. This rock had caught my attention since it was very heavy for its size. A large magnet will not stick to it. I dangled a small magnet near it and it barely moves to the rock. There looks to be specs of iron or nickel all over it. I used a file on a small edge and it will not do much to it.

 

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[Terry Soloman]

Not a meteorite. Looks like Petrified wood.

 

[oldbattleaxe]

Petrified wood would not attract a magnet, correct?

 

[Terry Soloman]

Petrified wood would not attract a magnet, correct?

" A large magnet will not stick to it. I dangled a small magnet near it and it barely moves to the rock."

You can magnetize almost any rock enough to "barely" move a small magnet. Could be shale with some mica in it. It is terrestrial though.

 

[BloodMoon]

Have you done a streak test? Scratch it vigorously on the unglazed side of a tile or you can even sometimes do it underneath your toilet seat. Does it leave any streak at all?

I had purchased a large box of petrified wood, geodes, and some small unusual rocks. This rock had caught my attention since it was very heavy for its size. A large magnet will not stick to it. I dangled a small magnet near it and it barely moves to the rock. There looks to be specs of iron or nickel all over it. I used a file on a small edge and it will not do much to it.

 

[oldbattleaxe]

Yes it makes a black line when I strape it on the lid underside.

 

[BloodMoon]

If it left a black streak, it’s most likely magnetite. In fact from the looks of it as well I think there’s a 99.9% chance it is. It dormant seem to be slag. Not a meteorite though.

Yes it makes a black line when I strape it on the lid underside.

 

[oldbattleaxe]

If it left a black streak, it’s most likely magnetite. In fact from the looks of it as well I think there’s a 99.9% chance it is. It dormant seem to be slag. Not a meteorite though.

Thanks for all of the help forum. SOLVED

 

[A2coins]

Good Id

 

[Al D]

If you measure the angles of your specimen, you will see that it has a cubic structure, you can do this with any terrestrial rock if it has an angle resulting from a break.
meteorites usually do not exhibit any geometric structure, so a specimen which exhibits nice angles is not a meteorite.
but, as the disclaimer goes, there are some which came from Mars which could have such a structure since Mars formed similar to Earth. There seems to be an exception with everything, keep looking, they are out there.