1) acid test on stone, rubbing edge, yes. I wiped off after about 8 seconds. I deal in many antiques and test all "potential" gold, silver and platinum.
2) Yes, same procedure for all gold and silver.
Counterfeit Silver Dollars Passing the Test
Moderator: Daniel
Forum rules
Here's a link to how to post a topic with images in our community https://coinauctionshelp.com/welcome-to ... community/
___________________________________________________________________________________________________________
You also agree to follow these guidelines. You must agree to these rules to be a member of this forum. NO SPAM! Spam is deleted within minutes, no spam will ever be left in our community.
1. Post a front and back image of your coin with a specific question about what you’re seeing or asking about and one coin per topic.
2. Please remove coin from the holder unless it’s US or an official mint case or unless it is graded by a grading service.
3. Images should be taken by a camera or cell phone camera, we ask that members don’t use images through a microscope screen.
4. Always start your own topic, please don’t ask about your coin or post your coin in someone else’s coin topic.
5. Do not send private messages about your coin unless an Admin ask you too and the same for sending emails through the board.
6. No spam. Do not post any links to your coin or other non-coin websites.
7. Always be respectful even if something makes you upset or you don’t agree with a member. You can always get a second opinion elsewhere. If you have an issue then politely ask an admin in an PM. PM’s are for issues, technical and personal, but not for coin questions (refer to number 5 on this list). Our community is not a soap box for complaining or drama, so please refrain from doing so here.[/size]
Here's a link to how to post a topic with images in our community https://coinauctionshelp.com/welcome-to ... community/
___________________________________________________________________________________________________________
You also agree to follow these guidelines. You must agree to these rules to be a member of this forum. NO SPAM! Spam is deleted within minutes, no spam will ever be left in our community.
1. Post a front and back image of your coin with a specific question about what you’re seeing or asking about and one coin per topic.
2. Please remove coin from the holder unless it’s US or an official mint case or unless it is graded by a grading service.
3. Images should be taken by a camera or cell phone camera, we ask that members don’t use images through a microscope screen.
4. Always start your own topic, please don’t ask about your coin or post your coin in someone else’s coin topic.
5. Do not send private messages about your coin unless an Admin ask you too and the same for sending emails through the board.
6. No spam. Do not post any links to your coin or other non-coin websites.
7. Always be respectful even if something makes you upset or you don’t agree with a member. You can always get a second opinion elsewhere. If you have an issue then politely ask an admin in an PM. PM’s are for issues, technical and personal, but not for coin questions (refer to number 5 on this list). Our community is not a soap box for complaining or drama, so please refrain from doing so here.[/size]
- Paul
- Master Die Variety Examiner
- Posts: 19069
- Joined: Wed May 29, 2013 9:19 pm
- Location: Wisconsin
- Has thanked: 906 times
- Been thanked: 3319 times
Re: Counterfeit Silver Dollars Passing the Test
& a magnet has no attraction to these coins...?
:eureka:
as nickel is a "ferromagnetic" metal...
:eureka:
as nickel is a "ferromagnetic" metal...
- mhonzell
- Administrator
- Posts: 2734
- Joined: Mon Jul 22, 2013 2:14 pm
- Location: Arizona
- Has thanked: 172 times
- Been thanked: 461 times
Re: Counterfeit Silver Dollars Passing the Test
Most metals aren't magnetic with the exception of iron, nickel, cobalt, gadolinium, neodymium and samarium.
(Funny, I work with all of these.)
Anyway, posting pictures is fairly easy.
Just use the Full Editor when writing your reply.
Then, scroll down under the reply and you will see an "attachment" tab for entering photos.
Here's a test to tell all without subjecting a coin to acid:
Coin Specific Gravity
Specific gravity determines how much water is displaced by the mass of the coin. Only an authentic Morgan Silver dollar will have a specific gravity of 10.340.
(Funny, I work with all of these.)
Anyway, posting pictures is fairly easy.
Just use the Full Editor when writing your reply.
Then, scroll down under the reply and you will see an "attachment" tab for entering photos.
Here's a test to tell all without subjecting a coin to acid:
Coin Specific Gravity
Specific gravity determines how much water is displaced by the mass of the coin. Only an authentic Morgan Silver dollar will have a specific gravity of 10.340.
- Paul
- Master Die Variety Examiner
- Posts: 19069
- Joined: Wed May 29, 2013 9:19 pm
- Location: Wisconsin
- Has thanked: 906 times
- Been thanked: 3319 times
Re: Counterfeit Silver Dollars Passing the Test
m, remember SG is a 'volume' measurement, as 'displacement'.....
:eureka:
so, if i calculate only by the "numbers".....using nickel @ 8800 Kg/m3, & silver @ 10,049 Kg/m3.....then a 'nickel coin' of this size would be:
22.42364g
:eureka:
so, if i calculate only by the "numbers".....using nickel @ 8800 Kg/m3, & silver @ 10,049 Kg/m3.....then a 'nickel coin' of this size would be:
22.42364g
- mhonzell
- Administrator
- Posts: 2734
- Joined: Mon Jul 22, 2013 2:14 pm
- Location: Arizona
- Has thanked: 172 times
- Been thanked: 461 times
Re: Counterfeit Silver Dollars Passing the Test
That's true if it is the exact size of a Morgan. If the counterfeiter mixed lead and tin to get the weight right, then the volume would only need to be slightly off, the weight would be right, it would not be magnetic, but the specific gravity would still be wrong.
- Paul
- Master Die Variety Examiner
- Posts: 19069
- Joined: Wed May 29, 2013 9:19 pm
- Location: Wisconsin
- Has thanked: 906 times
- Been thanked: 3319 times
Re: Counterfeit Silver Dollars Passing the Test
:agree: m,
although, i can't see "50" different so called 'dealers'........
:eureka:
& we know the 'real fakes' would be 'AU-ish / XF+' looky-loos
although, i can't see "50" different so called 'dealers'........
:eureka:
& we know the 'real fakes' would be 'AU-ish / XF+' looky-loos
-
- Similar Topics
- Replies
- Views
- Last post
-
- 9 Replies
- 1596 Views
-
Last post by Daniel
-
- 5 Replies
- 563 Views
-
Last post by Daniel
-
- 0 Replies
- 1002 Views
-
Last post by Daniel
-
- 3 Replies
- 373 Views
-
Last post by Felonyflats909
-
- 12 Replies
- 834 Views
-
Last post by Earle42
-
- 9 Replies
- 432 Views
-
Last post by Daniel
-
- 3 Replies
- 1714 Views
-
Last post by cableman
-
- 14 Replies
- 3767 Views
-
Last post by chuckmarks50