My Grandpa found these on his land in CO. What are they? Meteorites?

[killeraxemannic]

My Grandpa had about an acre of land in the mountains of CO near Estes Park. He found these a couple years ago and we never figured out what they are. He passed away this year and I found them when I was cleaning out his house. I am pretty curious as to what they are so I figured I would post. He thought they were meteorites but a few people I have shown thought they were hematite. I think he thought they were meteorites because the bottom looks like it could have been melted. They are quite heavy and magnetic.

 

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[Ant]

If I found those I would think coal, lava or flint ore.

 

[Ant]

I wish I could say meteorite but with the limited knowledge that I possess can't, may be someone eles can. Good Luck.

 

[brogansown]

Those striations look like they were at the bottom of a glacier and scooted along the bottom long enough to gouge those grooves. Found a large piece with grooves like that up in Alaska while digging foundations for a hospital. Interesting.

 

[Ant]

Most of us have wondered how some rocks become striated, I found glacial pressure, and I found that rocks under pressure and lateral earth movement. I find striated rocks under alluvial soils on or near bedrock, and landslides and earthquakes may produce striations is rocks, stones and boulders.

 

[BosnMate]

He said they are both magnetic, so that rules out some of what I'd think. The one on the right I'd like to get a closer look at, on the left in the picture looks to be either petrified wood or flint/jasper type rock, but magnetic rules that out.

 

[killeraxemannic]

He said they are both magnetic, so that rules out some of what I'd think. The one on the right I'd like to get a closer look at, on the left in the picture looks to be either petrified wood or flint/jasper type rock, but magnetic rules that out.

Both are definitely magnetic. There are magnets stuck to the side of them in the picture. The bottom of the left one looks similar to the right and vicea versa. I held them that way so you could see the top and the bottom as they both look very similar. I do believe they are the same thing whatever they are.

 

[Ant]

I did notice the neodymium magnetic attached to the specimen on the left from the observers perspective. Here go to this link and see if they pass the test:
Have You Found a Meteorite - Meteorite Identification, How to Identify a Meteorite

 

[killeraxemannic]

I did notice the neodymium magnetic attached to the specimen on the left from the observers perspective. Here go to this link and see if they pass the test:
Have You Found a Meteorite - Meteorite Identification, How to Identify a Meteorite

It passes some. I think I found that site a while back. They are definitely highly magnetic, They are very heavy, Don't appear to streak. they do appear to have the molten burn type marks but I know that can come from other things. They however don't have the metal flakes and chondruls though.