[x] Welcome at THunting.com!

A fun place to talk about Metal Detecting, Treasure Hunting & Prospecting. Here you can share finds and experience with thousands of members from all over the world

Join us and Register Now - Its FREE & EASY

THunting.com
Treasure Hunting & Metal Detecting Community
   
Advanced Search
*
Welcome, Guest! Please login or register HERE - It is FREE and easy.
Only registered users can post and view images on our message boards.
Did you miss your activation email?

Login with email, password and session length
Or Login Using Social Network Account
2
News:
Pages:  1 2 3 4 5 6 7   Go Down
Print
Share this topic on FacebookShare this topic on Del.icio.usShare this topic on DiggShare this topic on RedditShare this topic on Twitter
Tags:
0 Members and 1 Guest are viewing this topic.
Offline tabdog
Moderator
Silver Member
*****

Join Date: Jun, 2009
Thank you1

Activity
0%
Male
United States
Posts: 1102
Referrals: 0

4460.00 Gold
View Inventory

Awards

Tesoro
« Reply #10 on: October 12, 2009, 11:05:27 pm »
Go Up Go Down
Quote:Posted by GoldDigger1950
I'm really not trying to give you a hard time here but every gold ring, even down to 9k, that I have ever found in water both fresh and salt has been absolutely shiny - bar none. No corrosion or tarnish ever. If you have tarnish, it may be a plated ring. A jeweler can tell for certain.

In Mexico, the market sellers will mark plated gold as 14k or even 18k to get a better price for it from the tourists. Reputable jewelers are not so dishonest but many countries the world over will have warnings about buying from markets. I'm not saying or implying that YOU did that but that the person who lost it may have. If you are certain it was tarnish, it was not gold. Sorry.


Steve in S OZ Posted,

Yes it does. I have dug a few gold items that you would have sworn were junk - due to the discoloration, check them all ! 90 % of gold & silver items will be stamped - look first of all for the stamp. Steve in so az


ForeverRich posted;

The type of gold makes a lot of difference in it's appearance after being in the ground. I found a ring one time that looked exactly like brass. It was even crudely made and everyone who looked at it said it was just a brass nut made into a ring. I took it to a coin and precious metals dealer and he gave me $225 for the scrap GOLD content. Glad I didn't listen to those who told me it was brass. That was a very valuable lesson.

Look here;

10k gold cross before and after cleaning,

{alt}

{alt}

Gold coin;

{alt}

Gold rings

{alt}

{alt}

I have found them my self, just do not have photos.

You should believe tha guy when he said he tested them.

Makes you guys look kind of green.

Happy Huntin,

Tabdog

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,8519.msg53651.html#msg53651
http://i220.photobucket.com/albums/dd296/dcb1265/9-08/Crucifix20Before201.jpg
http://i220.photobucket.com/albums/dd296/dcb1265/9-08/Crucifix20After201.jpg
http://i220.photobucket.com/albums/dd296/dcb1265/9-08/StGaudensDoubleEagle1924NGCStarObve.jpg
http://i220.photobucket.com/albums/dd296/dcb1265/9-08/oct20102020hunt20drained20lake20015.jpg
http://i220.photobucket.com/albums/dd296/dcb1265/9-08/BPH_goldring_082209.jpg

Logged
Offline GoldDigger1950
The Old Man and the Soil
Global Moderator
Platin Member
*****

Just call me GD.
The Old Man and the Soil
Join Date: Jun, 2009
Thank you225

Activity
0%
Male
United States
Posts: 11219
Referrals: 12

47848.00 Gold
View Inventory

Awards

Garrett Groundhog ADS, Garrett Sea Hunter, Bounty Hunter Tracker IV, Bounty Hunter Pioneer 505,Minelab Eldorado Mk II, Tesoro Compadre, Tesoro Tiger Shark & A Few Home Brew Detectors
« Reply #11 on: October 13, 2009, 01:28:46 pm »
Go Up Go Down
Tabdog, none of that is tarnish on gold found in salt water, which is what I said. But thanks for replying.

Gold does not tarnish. Ever.

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,8519.msg53756.html#msg53756

« Last Edit: October 13, 2009, 01:32:23 pm by GoldDigger1950 » 		Logged
It's all about that moment when metal that hasn't seen the light of day for generations frees itself from the soil and presents itself to me.
Let's Talk Treasure!
Offline BackAtcha
Bronze Member
*

Avast, ye pirates!
Join Date: Sep, 2009
Thank you0

Activity
0%
Female
Independent Rouge States
Posts: 241
Referrals: 0

115.00 Gold
View Inventory

Awards

Cobra Beach Magnet, Automax Precision V4 Pinpointer
« Reply #12 on: October 13, 2009, 02:12:36 pm »
Go Up Go Down
Ok, boys, I'm not going to weigh in on this one, except to say that I love seeing everyone's pics.  I guess "all that glitters is not gold," and maybe all that doesn't glitter just might be! Smiley

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,8519.msg53764.html#msg53764

Logged
Offline GoldDigger1950
The Old Man and the Soil
Global Moderator
Platin Member
*****

Just call me GD.
The Old Man and the Soil
Join Date: Jun, 2009
Thank you225

Activity
0%
Male
United States
Posts: 11219
Referrals: 12

47848.00 Gold
View Inventory

Awards

Garrett Groundhog ADS, Garrett Sea Hunter, Bounty Hunter Tracker IV, Bounty Hunter Pioneer 505,Minelab Eldorado Mk II, Tesoro Compadre, Tesoro Tiger Shark & A Few Home Brew Detectors
« Reply #13 on: October 13, 2009, 04:35:54 pm »
Go Up Go Down
There is a bit of confusion going on here as to what is tarnish and what is electroplating. Some soil conditions can cause what is a spontaneous plating action because of salts in the soil mixture. Oil on the surface of the item from human skin aids in the plating action. This happens to all metals and gold is not immune. Tarnish is oxidation. Gold does not oxidize except with aqua regia, a mixture of hydrochloric acid and nitric acid. Gold alloys also do not oxidize the same way as the base metals would.

What you see on TabDog's photos is actually electroplating of the gold alloy to about one or two microns in thickness. This is removed with any good metal polish. Skin oils can affect gold and can actually leach out the base metal which is used in the gold alloy.

When I saw the original picture of the ring, I examined the scratched areas and the ring looks plated to me. In fact, though, without testing it, there's no way to tell. My suggestion to have it tested by a jeweler stands.

I have enlarged the scratched area and because of the darker color, it appears to be plated with tarnishing to the metal beneath the plating.

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,8519.msg53789.html#msg53789


There are 1 attachment(s) in this post which you can not view or download

Please register for viewing them.

Scratches.jpg

« Last Edit: October 13, 2009, 04:46:29 pm by GoldDigger1950 » 		Logged
It's all about that moment when metal that hasn't seen the light of day for generations frees itself from the soil and presents itself to me.
Let's Talk Treasure!
Offline luckypTopic starter
Copper Member
*

Join Date: Jul, 2009
Thank you0

Activity
0%
Male
United States
Posts: 98
Referrals: 0

590.00 Gold
View Inventory

Awards

Excalibur,xlt spectrum,PI2000,
« Reply #14 on: October 13, 2009, 05:24:04 pm »
Go Up Go Down
I do not not think that there is any confusion.I always test my jewelery with 2 systems.first electronicaly with a mizar18 and second with the acids and the stone.When this is done start the work of restoration to the original level.Polissage wheel with paste and buffering with red past at 35.0000rpm.In this case Idid not want to lose much gold on heavy polishing and this is why you still see some black marks.I am including for your information the photo of my professional cleaning tool.
YES I agree pure gold of 24k  stay as it is in any elements.The minute that gold is lowered with any others metals on 18k, 14k ,10k and 9k there is tarnishement on 18k and 14k and severe oxydation generally green for the 10k and the 9k.My original question was to find out how long that ring was in the water to obtain that tarnishement as Yes it is 14k

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,8519.msg53798.html#msg53798


There are 1 attachment(s) in this post which you can not view or download

Please register for viewing them.

P1010181.jpg

Logged
Offline danwebster
Silver Member
*

Join Date: Aug, 2009
Thank you1

Activity
0%

United States
Posts: 703
Referrals: 0

2775.00 Gold
View Inventory

Awards

Whites XLT  and  Surfmaster II
« Reply #15 on: October 13, 2009, 05:30:31 pm »
Go Up Go Down
Very Interesting, some nice photos there Tabdog great finds. Interesting there GD. How bout old gold fillings in teeth? Im still looking for my first piece of tarnished gold....... Grin....DW

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,8519.msg53799.html#msg53799

Logged
Offline luckypTopic starter
Copper Member
*

Join Date: Jul, 2009
Thank you0

Activity
0%
Male
United States
Posts: 98
Referrals: 0

590.00 Gold
View Inventory

Awards

Excalibur,xlt spectrum,PI2000,
« Reply #16 on: October 13, 2009, 05:40:39 pm »
Go Up Go Down
Here are some gold theets.Gold is under the porcelain.

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,8519.msg53803.html#msg53803


There are 2 attachment(s) in this post which you can not view or download

Please register for viewing them.

dsc00544editednl9_th.jpg
p1010033editeddz9.jpg

« Last Edit: October 13, 2009, 06:01:59 pm by luckyp » 		Logged
Offline GoldDigger1950
The Old Man and the Soil
Global Moderator
Platin Member
*****

Just call me GD.
The Old Man and the Soil
Join Date: Jun, 2009
Thank you225

Activity
0%
Male
United States
Posts: 11219
Referrals: 12

47848.00 Gold
View Inventory

Awards

Garrett Groundhog ADS, Garrett Sea Hunter, Bounty Hunter Tracker IV, Bounty Hunter Pioneer 505,Minelab Eldorado Mk II, Tesoro Compadre, Tesoro Tiger Shark & A Few Home Brew Detectors
« Reply #17 on: October 13, 2009, 05:52:25 pm »
Go Up Go Down
Quote:Posted by danwebster
Very Interesting, some nice photos there Tabdog great finds. Interesting there GD. How bout old gold fillings in teeth? Im still looking for my first piece of tarnished gold....... Grin....DW


Good luck with that, mate. LoL
Posted on: October 14, 2009, 02:45:34 AM
Quote:Posted by luckyp
I do not not think that there is any confusion.I always test my jewelery with 2 systems.first electronicaly with a mizar18 and second with the acids and the stone.When this is done start the work of restoration to the original level.Polissage wheel with paste and buffering with red past at 35.0000rpm.In this case Idid not want to lose much gold on heavy polishing and this is why you still see some black marks.I am including for your information the photo of my professional cleaning tool.
YES I agree pure gold of 24k  stay as it is in any elements.The minute that gold is lowered with any others metals on 18k, 14k ,10k and 9k there is tarnishement on 18k and 14k and severe oxydation generally green for the 10k and the 9k.My original question was to find out how long that ring was in the water to obtain that tarnishement as Yes it is 14k


It was mentioned more than once that the items LOOKED like plated items and you just now volunteered the information that you HAD tested them and that you have used a polisher on the item. What you had on the gold was NOT tarnish since gold and gold alloys do not tarnish. Ever.

What you have is electroplating of the gold from being in a solution that contains soluble salts. This plating action happens at an atomic level without external electricity being applied but it is not tarnish. To determine the length of time the item was exposed to this process requires a testing of the water to determine the nature and levels of the soluble salt content and a measure of the thickness and type of plating. Note that tarnish, unlike electroplating, goes deeply into metals. Try polishing a brass item that has a long period of tarnishing on it and you will have to remove much of the brass to get to the bottom of the tarnish. This ring had no such deep corrosion indicating it was not tarnish. Now that you explain why there are dark marks in the scratches, that tells me a great deal more about your find.

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,8519.msg53807.html#msg53807

« Last Edit: October 13, 2009, 05:55:15 pm by GoldDigger1950 » 		Logged
It's all about that moment when metal that hasn't seen the light of day for generations frees itself from the soil and presents itself to me.
Let's Talk Treasure!
Offline luckypTopic starter
Copper Member
*

Join Date: Jul, 2009
Thank you0

Activity
0%
Male
United States
Posts: 98
Referrals: 0

590.00 Gold
View Inventory

Awards

Excalibur,xlt spectrum,PI2000,
« Reply #18 on: October 13, 2009, 06:09:55 pm »
Go Up Go Down
gold alloys do not tarnish. Ever.Sorry to say but do not agree.
If you go to a jeweler or a smelter just ask him and I do not ask you to take my word for it.I will stay with my statement.

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,8519.msg53812.html#msg53812

Logged
Offline GoldDigger1950
The Old Man and the Soil
Global Moderator
Platin Member
*****

Just call me GD.
The Old Man and the Soil
Join Date: Jun, 2009
Thank you225

Activity
0%
Male
United States
Posts: 11219
Referrals: 12

47848.00 Gold
View Inventory

Awards

Garrett Groundhog ADS, Garrett Sea Hunter, Bounty Hunter Tracker IV, Bounty Hunter Pioneer 505,Minelab Eldorado Mk II, Tesoro Compadre, Tesoro Tiger Shark & A Few Home Brew Detectors
« Reply #19 on: October 13, 2009, 06:15:18 pm »
Go Up Go Down
Quote:Posted by luckyp
gold alloys do not tarnish. Ever.Sorry to say but do not agree.
If you go to a jeweler or a smelter just ask him and I do not ask you to take my word for it.I will stay with my statement.


Thank you for your opinion. I stand by MY statements. Try reading a book on metallurgy. Just for a laugh.

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,8519.msg53817.html#msg53817

Logged
It's all about that moment when metal that hasn't seen the light of day for generations frees itself from the soil and presents itself to me.
Let's Talk Treasure!
Print
Pages:  1 2 3 4 5 6 7   Go Up
Jump to:  

Powered by SMF 1.1.19 | SMF © 2005, Simple Machines | Sitemap
Copyright THunting.com