orange rock stone tool identification please

[hertzyinmn]

Hi, I wondered if any experts could tell me what type of stone this is, its around 4" it looks as may have been a stone tool possibly, Thanks ahead .

 

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[IAMZIM]

It looks like an iron sandstone concretion, with possibly some chert or agate growing in those voids in pic #4. Don't see anything to indicate a tool or artifact. Wrong kind of rock to be used for anything "tool" wise anyhow. JMO.