Curious

[mumszie]

How long does a coin (say a quarter or a dime) have to stay in the water to become black?

How long does a coin (say a quarter or a dime) have to stay in the dirt bto become black?

I was just curious because it would tell me about how long that paticular coin had been waiting for me to find it.

 

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[guzz1]

Thats a great ?? Mumzies,,,, I would like to know that as well,,,,,,,guzz1

 

[davest]

well, I would have to say, "from the moment it was lost, to the moment you recovered it". I don't know if there's a backward electrolysis method that deposits stuff on silver instead of taking it away.

 

[chipveres]

Here's my guess based on local conditions: Silver Quarter lost during world war 2, mostly black with thin layer of silver sulphide all over. Spanish Reale lost in 1533, biscuit-sized piece of dispersed silver sulphide, coin mostly eaten away.

Chip V.
P.S. I envy you & look forward to your posts every day.

 

[Sandman]

I think Treasure Tales has it correct. It depends on the ground it was lost on or in. I know all the silver I get from the water is black and from the dirt around here it isn't.