Acidity of bark chip ??

[Wally69]

Had a quick lap of a playground I have not hit before that showed promise as I picked up several gold sun bakers after a storm the other day.

Not a bad tally but think someone has hit the surface in between as these ones were a bit deeper an look like they have been there a while....or has the acidity of the bark hip accelerated the weathering???? What do you think.

 

[Ben78]

Geez that quarter is smacked up! I've never dug a quarter that came out like that and I've (surprisingly) dug a few!

 

[BSellin]

Council adding fertilizer can cause coins to change faster too.

 

[Wally69]

Geez that quarter is smacked up! I've never dug a quarter that came out like that and I've (surprisingly) dug a few!

Just looked at dates, 20c is 2013 and golds are a couple of years old, so must be the chip.

Quarter is 1977 so it must have had an interesting life, this is about the tenth one I have picked up locally.

 

[Heatho]

Decomposing plant matter does create Humic Acid, could be the bark or fertilisers. Some Yank must be walking around with a hole in his pocket lol.