Green and white.

[Ronstar]

Has anyone ever came across this before? Three pennies less than 12” apart taking on this type of coloring? I thought they were zinc, and they could be, but the bottom penny is 1972. All the pennies on the left are memorials and all were found in a area 100’ x 50’ Both the green and white rang up as copper memorials.(pic doesnt show how white the top one really is, bottom has more grey to it)

 

[Ronstar]

Aw c’mon…. Someone on here who paid attention to chemistry class in high school has to have some idea????? Otherwise I’m going with some frat rat pee’d on them……..

 

[still looking 52]

My guess, fertilizer caused this reaction. I've seen a bunch of those green pennies around here, not uncommon at all.

 

[jim tn]

Often times the green ones like you show seem to come from low spots where water sets longer. I've seen white ones too and they may be the first step to turning green??? That's my theory and until proven otherwise, I'm sticking to it. HH jim tn

 

[Ronstar]

I thought fertilizer as well but the university doesnt fertilize, just pipes in effluent water. I would think if a couple of these reacted then why not the others surrounding them? Just weird cuz these are not the green like old copper pennies but almost bright lime green.

 

[jim tn]

Its a crusty green, too, right? HH jim tn

 

[Ronstar]

Yes, very crusted. Unable to tell if copper or zinc.