Very porus black metal blob?

[silversnacher]

Very confused what in the world are these? They make the ace 350 and pro pointer go off i cracked them open but cant tell them what they are any ideas? Thanks

 

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[Red James Cash]

looks like pumice,does it float?

 

[silversnacher]

Ill check

 

[silversnacher]

Nope dosnt float

 

[XLTer]

Ash from a coke oven ? Does it read all over the spectrum ( iron up to Silver Dollar maybe even OVERLOAD ) on your detector ? The ash here in Pa. will drive a detector crazy .

 

[silversnacher]

Ash from a coke oven ? Does it read all over the spectrum ( iron up to Silver Dollar maybe even OVERLOAD ) on your detector ? The ash here in Pa. will drive a detector crazy .

Reads right below nickel not too jumpy either.

 

[silversnacher]

It's so strange I don't know whether to keep it or what.

 

[silversnacher]

looks like pumice,does it float?

Does pumice always float?

 

[DCMatt]

Probably "coal clinkers". It is the left over junk (impurities) that won't burn up when you burn coal. Pretty common around old houses that were heated by a coal furnace. You had to clean them out occasionally and they usually just got thrown out in the yard. They will make your detector go crazy.

DCMatt