Why Is This $1 Coin Darker Than Others?

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Author	Replies: 9 / Views: 3,132
Raineyday New Member Australia 5 Posts	Posted 01/07/2017 11:52 pm Hi can anyone help me with this, I'm new to coin collecting. Question: why is this $1 coin so dark? Report this Post to the Staff

coin197 Pillar of the Community United States 1963 Posts	Posted 01/08/2017 01:01 am Probably it just tarnished. Back into your pocket that goes, assuming you live in Australia. Report this Post to the Staff
johnny1989 Valued Member Australia 52 Posts	Posted 01/08/2017 01:03 am Hello, Raineyday! Welcome to CCF! Can you take the other photo? I don't see any special at this photo. John Edited by johnny1989 01/08/2017 03:01 am Report this Post to the Staff
coin197 Pillar of the Community United States 1963 Posts	Posted 01/08/2017 01:07 am Oh yes, I almost forgot: Report this Post to the Staff
Raineyday New Member Australia 5 Posts	Posted 01/08/2017 04:01 am Thanks for your replys and welcoming me :) Soooo what about this 2016 $2 Australian coin? This is from a mint bag. It was the only one found with is mark on the Queens Head. What do you call this mark? Report this Post to the Staff
sel_69l Bedrock of the Community Australia 21786 Posts	Posted 01/08/2017 08:34 am to the CCF ! Has been exposed to heat. Get them red hot and plunge 'em into water to cool, and they go jet black. Been there, done that. Have fun and try it for yourself, and put them back into circulation. Edited by sel_69l 01/08/2017 08:36 am Report this Post to the Staff
trout1105 Pillar of the Community Australia 7096 Posts	Posted 01/08/2017 08:41 am Quote: Soooo what about this 2016 $2 Australian coin? This is from a mint bag. It was the only one found with is mark on the Queens Head. What do you call this mark? Toning. The Mint bags are definitely NOT the best way to store coins as they are not air tight and the coins are prone to toning in them. I bought a few of the little Changeover baggies and I vacuum sealed them using my little sealer I take away on fishing trips. Hopefully doing this should at least slow down the toning process Report this Post to the Staff
Debrajc Pillar of the Community United States 4211 Posts	Posted 01/08/2017 10:04 am to the CCF! Report this Post to the Staff
Sap Moderator Australia 16809 Posts	Posted 01/08/2017 5:16 pm Hello and welcome. Your first coin has "environmental damage". An aluminium-bronze coin turning dark might be caused by several things, but the two commonest are spending some time buried in soil before being dug up again, or spending some time immersed in chlorinated water such as as a swimming pool or public fountain. As for your second coin, several things may have happened. There may have been a pinhole in the mint bag directly above the spot, allowing air or whatever noxious gases the bag was exposed to, to react with the coin only in that spot. Or, it may have had something spilled on it before being put into the bag. It does not really look like a defect in the alloy, so cannot truly be called a "mint error", even if what happened to it did happen before it left the mint. Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis Report this Post to the Staff
Raineyday New Member Australia 5 Posts	Posted 01/08/2017 11:00 pm Thank you everyone for your help. Report this Post to the Staff
	Replies: 9 / Views: 3,132

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