Great thread I never saw before. So is the green on my coin from the silver, or the iridium?
And which is it that makes these reds in Carolina gold?
And lastly, does anybody have a picture of a gold coin that was treated with iodine? I always heard to watch out for those but I’ve never seen one that I can remember.
Much of the gold used at the Charlotte mint was mined in western North Carolina. The natural composition of this gold was rich in copper ore. Thus, many Charlotte gold coins (especially those struck before 1850) have a distinctive orange-gold or reddish-gold coloration. On later issues, this color tends to be a more green-gold in hue. This is due to the fact that more gold from California (with a higher silver content) was used.
For some reason, the Charlotte coins with the best coloration are the Type One gold dollars (1849-1853) and the half eagles produced during the early part of the 1840's. It is very hard to locate any of the quarter eagles from the 1850's with attractive, even coloration.
Well over 75% of all Charlotte gold coins have been cleaned or dipped and no longer show any hint of original color. Charlotte gold coins with attractive original color are beginning to command a premium, although not as much so as their counterparts from Dahlonega.
Dahlonega
The gold that was used to make Dahlonega gold coins from 1838 until the early 1850's had a high amount of silver within its natural composition. This provided many of the coins from this era with a distinctive green-gold hue. On issues struck after 1850, more gold from the western deposits was employed and the color tends to show more of a reddish-gold hue.
As with the Charlotte gold coins, Type One Dahlonega gold dollars (1849-1854) and certain half eagles from the 1840's (and even into the 1850's) are more likely to be seen with good color than the other issues from this mint. With a few exceptions (such as the 1857-D), quarter eagles from this mint are very hard to locate with nice color. The same holds true for Type Two Dahlonega gold dollars and three dollar gold pieces. As a rule of thumb, the rarer and more popular a certain date is from this mint, the more likely it is to be found without original color.
Well over 75% of all Dahlonega coins have been cleaned or dipped and no longer show original color. This is a very popular series with collectors and their level of sophistication tends to be higher than other branch mint specialists. Dahlonega coins with pleasing natural color currently command high premiums; more so than from any other branch mint.”
But I’m still not sure what traces on Iridium in gold looks like and don’t know what a gold coin treated with iodine looks like.
USAF (Ret) 1974 - 1994 - The inherent vice of capitalism is the unequal sharing of blessings; the inherent virtue of socialism is the equal sharing of miseries. Remembering RickO, a brother in arms.
Comments
Copper and other trace elements are what give the old gold that awesome color I love old gold like that
https://www.pcgs.com/setregistry/quarters/washington-quarters-major-sets/washington-quarters-date-set-circulation-strikes-1932-present/publishedset/209923
https://www.pcgs.com/setregistry/quarters/washington-quarters-major-sets/washington-quarters-date-set-circulation-strikes-1932-present/album/209923
I crossed my NGC MS61 CAC Indian over to PCGS for trueviews.
Reviving this great old thread to draw out some more toned gold images. I’ll kick things off:
Great thread I never saw before. So is the green on my coin from the silver, or the iridium?
And which is it that makes these reds in Carolina gold?
And lastly, does anybody have a picture of a gold coin that was treated with iodine? I always heard to watch out for those but I’ve never seen one that I can remember.
Mr_Spud
This calls for a Brandon Kelley pic:
This was posted a while back when it was NGC 55. Now its PCGS 53 CAC,
Jb-rarities.com
IG: jb_rarities
That’s such a monster coin. Poster child for the iridium theory. Beautiful.
I was still wondering about the green Dahlonega gold and red Charlotte gold and found this info at https://raregoldcoins.com/blog/articles/coloration-and-united-states-gold-coins
“Charlotte
Much of the gold used at the Charlotte mint was mined in western North Carolina. The natural composition of this gold was rich in copper ore. Thus, many Charlotte gold coins (especially those struck before 1850) have a distinctive orange-gold or reddish-gold coloration. On later issues, this color tends to be a more green-gold in hue. This is due to the fact that more gold from California (with a higher silver content) was used.
For some reason, the Charlotte coins with the best coloration are the Type One gold dollars (1849-1853) and the half eagles produced during the early part of the 1840's. It is very hard to locate any of the quarter eagles from the 1850's with attractive, even coloration.
Well over 75% of all Charlotte gold coins have been cleaned or dipped and no longer show any hint of original color. Charlotte gold coins with attractive original color are beginning to command a premium, although not as much so as their counterparts from Dahlonega.
Dahlonega
The gold that was used to make Dahlonega gold coins from 1838 until the early 1850's had a high amount of silver within its natural composition. This provided many of the coins from this era with a distinctive green-gold hue. On issues struck after 1850, more gold from the western deposits was employed and the color tends to show more of a reddish-gold hue.
As with the Charlotte gold coins, Type One Dahlonega gold dollars (1849-1854) and certain half eagles from the 1840's (and even into the 1850's) are more likely to be seen with good color than the other issues from this mint. With a few exceptions (such as the 1857-D), quarter eagles from this mint are very hard to locate with nice color. The same holds true for Type Two Dahlonega gold dollars and three dollar gold pieces. As a rule of thumb, the rarer and more popular a certain date is from this mint, the more likely it is to be found without original color.
Well over 75% of all Dahlonega coins have been cleaned or dipped and no longer show original color. This is a very popular series with collectors and their level of sophistication tends to be higher than other branch mint specialists. Dahlonega coins with pleasing natural color currently command high premiums; more so than from any other branch mint.”
But I’m still not sure what traces on Iridium in gold looks like and don’t know what a gold coin treated with iodine looks like.
Mr_Spud
'Scuse me while I whip this out...
USAF (Ret) 1974 - 1994 - The inherent vice of capitalism is the unequal sharing of blessings; the inherent virtue of socialism is the equal sharing of miseries. Remembering RickO, a brother in arms.
How about some more toned gold? This one is NGC58 CAC: