Log in or Sign up
Coin Talk
Home
Forums
>
Coin Forums
>
Bullion Investing
>
Cause of Red Spots on Gold Coins
>
Reply to Thread
Message:
<p>[QUOTE="medoraman, post: 982540, member: 26302"]Well the article I linked showed natural nuggets in their test sample ranged from 86.8 to 99% pure gold. Not completely "purified by nature". I have read how you purify by lead as well as mercury. I have purified gold myself using mercury on gold dust. If you read further about mercury refining it will show you that it is not completely purifying the gold, traces of other metals remain, as well as the mercury itself. In nature, yes, gold is found more pure than most other things. BUT, the first coins were electrum because that is the natural form gold was found in there, and its extremely common for silver to be found with gold found in nature.</p><p><br /></p><p>I do not think we should take Pliny's word as to the scientific correct purification levels of gold they could achieve. We have it already, with the article posted, stating they were able to achieve .99 pure for coins they intended to be pure gold. It was quite an accomplishment, but not .9999 let alone 1.000.[/QUOTE]</p><p><br /></p>
[QUOTE="medoraman, post: 982540, member: 26302"]Well the article I linked showed natural nuggets in their test sample ranged from 86.8 to 99% pure gold. Not completely "purified by nature". I have read how you purify by lead as well as mercury. I have purified gold myself using mercury on gold dust. If you read further about mercury refining it will show you that it is not completely purifying the gold, traces of other metals remain, as well as the mercury itself. In nature, yes, gold is found more pure than most other things. BUT, the first coins were electrum because that is the natural form gold was found in there, and its extremely common for silver to be found with gold found in nature. I do not think we should take Pliny's word as to the scientific correct purification levels of gold they could achieve. We have it already, with the article posted, stating they were able to achieve .99 pure for coins they intended to be pure gold. It was quite an accomplishment, but not .9999 let alone 1.000.[/QUOTE]
Your name or email address:
Do you already have an account?
No, create an account now.
Yes, my password is:
Forgot your password?
Stay logged in
Coin Talk
Home
Forums
>
Coin Forums
>
Bullion Investing
>
Cause of Red Spots on Gold Coins
>
Home
Home
Quick Links
Search Forums
Recent Activity
Recent Posts
Forums
Forums
Quick Links
Search Forums
Recent Posts
Competitions
Competitions
Quick Links
Competition Index
Rules, Terms & Conditions
Gallery
Gallery
Quick Links
Search Media
New Media
Showcase
Showcase
Quick Links
Search Items
Most Active Members
New Items
Directory
Directory
Quick Links
Directory Home
New Listings
Members
Members
Quick Links
Notable Members
Current Visitors
Recent Activity
New Profile Posts
Sponsors
Menu
Search
Search titles only
Posted by Member:
Separate names with a comma.
Newer Than:
Search this thread only
Search this forum only
Display results as threads
Useful Searches
Recent Posts
More...