Melting Gold
Gold Detecting and Prospecting Forum :: General :: Prospecting Answers :: Gold, Gemstones & Their Properties
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Re: Melting Gold

no point keeping this gold as is ! either send to refiners or smelt it into a manageable button

Yes Rob a lot of reading of the info is needed --its all in here in different places BUT all here
Guest- Guest
Re: Melting Gold
OK, melting the real fine dust makes sense, its nothing special to look at.
I've been scanning through the site, theres lots of snippets which suit me at my current level.
I noticed I asked certian questions when I 1st looked here & others since (in the last few days) have done the same... And no doubt, 100 before & another 100 over the next week.
You guys must be very patient.
I've been scanning through the site, theres lots of snippets which suit me at my current level.
I noticed I asked certian questions when I 1st looked here & others since (in the last few days) have done the same... And no doubt, 100 before & another 100 over the next week.
You guys must be very patient.
Rob.B- Seasoned Contributor
- Number of posts : 146
Age : 53
Registration date : 2011-10-08
Re: Melting Gold
chopppacalamari wrote:if you haven't seen it then I can under stand the question. That brings an old saying to mind. If you only think you have gold then you haven't. If you know you have gold then you have.
Dicko..
Dicko that is a classic i like it. cheers

Guest- Guest
Re: Melting Gold
Rob.B wrote:OK, melting the real fine dust makes sense, its nothing special to look at.
I've been scanning through the site, theres lots of snippets which suit me at my current level.
I noticed I asked certian questions when I 1st looked here & others since (in the last few days) have done the same... And no doubt, 100 before & another 100 over the next week.
You guys must be very patient.
yes Rob the price of gold has spurned a lot of ppl to try their hand and the same questions do crop up time and time again


Guest- Guest
Re: Melting Gold
I think thats the idea.... Im going back out on the weekend & wil get a pan so I can pan a bit of the hill before I bother putting a few hours into it.
I think detecting is the way for me, I detect in the bush for 6 hours, it feels like 1 hour & I dont want to go home.
The bush is amazingly relaxing!
I think detecting is the way for me, I detect in the bush for 6 hours, it feels like 1 hour & I dont want to go home.
The bush is amazingly relaxing!
Rob.B- Seasoned Contributor
- Number of posts : 146
Age : 53
Registration date : 2011-10-08
Re: Melting Gold
opalngold wrote:Having similar trouble as Dryblower , how do you remove the remains of the borax and crap [ slag ] left over in the crucible after melting ? If it’s left in there it seams to soak up too much heat. Tried chiselling it out that did work but also chipped the crucible. Any ideas? I use Mapp gas. Thanks Greg
PS Geof junk I don’t know how you got enough heat using propane?
when i was working in an assay lab after we had poured our samples the platinum crucibles went into an ultrasonic bath that was filled with water and citric acid, they would sit in the bath for 8-10 minutes and come out clean as the citric acid dissolved the melted flux left in the crucibles,
i have not tried to dissolve the borax with citric acid, it may work or it might not, the flux we used in the lab was worth 4-$500 a bottle it was nearly pure compared to what borax is,
I might even find an old ceramic crucible just to give it a try and see what happens.
cheers
koeh
koeh- Contributor Plus
- Number of posts : 327
Registration date : 2011-01-31
melting gold
hi rob b, when you find your first gold nugget you will know instantly what it is,there is no mistaking fools gold for au.you will know.arjay
arjay- Contributor
- Number of posts : 23
Registration date : 2010-10-13
Re: Melting Gold
koeh wrote:opalngold wrote:Having similar trouble as Dryblower , how do you remove the remains of the borax and crap [ slag ] left over in the crucible after melting ? If it’s left in there it seams to soak up too much heat. Tried chiselling it out that did work but also chipped the crucible. Any ideas? I use Mapp gas. Thanks Greg
PS Geof junk I don’t know how you got enough heat using propane?
when i was working in an assay lab after we had poured our samples the platinum crucibles went into an ultrasonic bath that was filled with water and citric acid, they would sit in the bath for 8-10 minutes and come out clean as the citric acid dissolved the melted flux left in the crucibles,
i have not tried to dissolve the borax with citric acid, it may work or it might not, the flux we used in the lab was worth 4-$500 a bottle it was nearly pure compared to what borax is,
I might even find an old ceramic crucible just to give it a try and see what happens.
cheers
koeh
G’day Koeh
Let us know how you get on with the citric acid.
Choppa mentioned in an earlier post to add salt to the left over borax slag to make it runny, so I will try this method.
Cheers Greg
opalngold- Contributor
- Number of posts : 39
Registration date : 2009-09-15
Re: Melting Gold
Hi Arjay
Im sure I will.... But the again Im a bit of a fool so its all gold to me!
Rob
Im sure I will.... But the again Im a bit of a fool so its all gold to me!
Rob
Rob.B- Seasoned Contributor
- Number of posts : 146
Age : 53
Registration date : 2011-10-08
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Gold Detecting and Prospecting Forum :: General :: Prospecting Answers :: Gold, Gemstones & Their Properties
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