Peculiar stone

[beau7johnson]

I found this stone today near a small steam in the smoky hill river region of Kansas. It's extremely heavy and has a slight magnetic pull. It seemed very out of place amongst the seemingly stoneless stretches of farmland. Any ideas or answers to what this is or may be will be appreciated!

 

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[GA_Boy]

That kinda looks like one I have and can't ID. Mine is heavy as lead but does not respond to my detector in all metal.
Mine is possibly a CLINKER.===========
noun 1. a mass of incombustible matter fused together, as in the burning of coal.

2. a hard Dutch brick, used especially for paving.

3. a partially vitrified mass of brick.

4. the scale of oxide formed on iron during forging.

5. Geology. a mass of vitrified material ejected from a volcano.

 

[beau7johnson]

Never thought of that fifth possibility but all very interesting GA Boy.

 

[Eu_citzen]

Try the rock/gems section and bring along better pics. Best taken in daylight.