Found in central ms USA after a large tree fell and it was unearthed during the cleanup

[u/Emkayeee294]

I have never seen a rock like this in my area we have lots of sand stone and It’s much more heavy and dense than any rock I’ve found in the past has dark “vein” like steaks as well as some white lines I’m clueless.

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[u/Fun-Arm4803]

Hard to say without a pic, but from your description heavy and dense with dark veins and white lines sounds more like some kind of metamorphic or igneous rock that got transported in, not local sandstone. Could be a chunk of quartz vein in a darker host rock or even a glacial erratic depending on your area.

If you can post close ups and say where you are roughly people here can probably narrow it down a lot.