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Coins Being Dug Up 'Lead White'?

Posted: Sat Jan 05, 2019 11:50 pm
by detectorman5050
I dug these coins up today, and despite their atrocious state I reckon that they are only Victorian. When I dug them up, it struck me how white they were - they actually look like old lead. I've never seen this before. Have you seen copper/bronze coins with this whitening before? I wonder what type of soil condition causes it?
lead-white.png

Re: Coins Being Dug Up 'Lead White'?

Posted: Sun Jan 06, 2019 12:09 am
by Steve_T
With the mix of chemicles and fertilisers, animal manure from chickens, pigs, cows and sometimes processed human waste and the natural minerals in the soil...........it all reacts with composite metals, some fair better than others

Could be any of the above and that's why it's always wise to wear gloves

Regards Steve

Re: Coins Being Dug Up 'Lead White'?

Posted: Sun Jan 06, 2019 12:10 am
by Easylife
I first thought you were talking about lead hem weights, but they look like knackered Georgian coins. Anything is possible as ground conditions can vary so much. x;

Re: Coins Being Dug Up 'Lead White'?

Posted: Sun Jan 06, 2019 1:03 am
by detectorman5050
Easylife wrote:
Sun Jan 06, 2019 12:10 am
I first thought you were talking about lead hem weights, but they look like knackered Georgian coins. Anything is possible as ground conditions can vary so much. x;
I am pretty sure one is Victorian, and I actually reckon that one is even early 20th Century - must just be a 'weird field.'

Re: Coins Being Dug Up 'Lead White'?

Posted: Sun Jan 06, 2019 1:11 am
by Easylife
detectorman5050 wrote:
Sun Jan 06, 2019 1:03 am
Easylife wrote:
Sun Jan 06, 2019 12:10 am
I first thought you were talking about lead hem weights, but they look like knackered Georgian coins. Anything is possible as ground conditions can vary so much. x;
I am pretty sure one is Victorian, and I actually reckon that one is even early 20th Century - must just be a 'weird field.'
Yeah maybe, there is often no logic to this game. :D

Re: Coins Being Dug Up 'Lead White'?

Posted: Sun Jan 06, 2019 7:33 am
by FUBAR
Please take this post as a warning. All detectors should always wear gloves not only from the danger of cutting yourself from glass etc other toxic chemicals in the ground. Be careful how you handle "white lead" in particular. ::g

Re: Coins Being Dug Up 'Lead White'?

Posted: Sun Jan 06, 2019 12:21 pm
by WVAM
I wonder if this is due to a higher zinc content or perhaps they are zinc coins?

Re: Coins Being Dug Up 'Lead White'?

Posted: Sun Jan 06, 2019 6:50 pm
by detectorman5050
WVAM wrote:
Sun Jan 06, 2019 12:21 pm
I wonder if this is due to a higher zinc content or perhaps they are zinc coins?
I am not sure - think they were just the standard old copper or bronze coins you find in the UK. Don't think I'll narrow down the reason why they have turned whitish. Best guess, something in the soil.

Possibly contamination from early industrial processes affected these coins given the location.