12ct gold

[Paget Jewellery]

HEY you guyssss, haha just a question answered appreiciated, I have been working and looking into inquarting gold, but I really would just like to know if I had 10grams of 12ct and want to revert it back to 6ct gold then should I just add 30 grams of silver to it???? I don't think this is the right answer though because woulden't I have 40g of 3ct gold?? does anyone know the process and the correct formula? does anyone have a table to go from so I can have a look at it myself, T.I.A

[ps_bond]

Inquartation is used for refining gold, defining it as 6ct or 3ct is meaningless for that.
http://www.ganoksin.com/borisat/nenam/wgc-refining.htm covers the process in some detail.

[Paget Jewellery]

all I want to do is make 12ct into 6ct with 10 grams I don't actually want to refine it, how much silver should I use? I know its 3 parts to 1 part but how do I find out how much pure gold is in 10 grams of 12ct??

[ps_bond]

If you have 12ct - which is not a valid hallmarkable level and would be marked as 9ct - then you have 12/24 parts pure gold. If you really, really want to turn it into 6ct - again, not a hallmarkable level and below even 9ct purity - then you would need to double the total mass. Id est - if you have 10g of 12ct, you have 5.0g of gold. To create 6ct, you need a total of 5.0 * 24/6 of alloy.

The question "why" remains.

[Paget Jewellery]

its just that I'm melting 9ct and 14ct together to produce 30 grams of 12ct, the ring im making will take up 20 grams and I suggested that the other 10 grams be used to make something of, so 5 grams X 24 divided by 6 just to be clear???, also is there a way if I have 10 grams of 12ct to revert it to 9ct instead?

[CJ57]

If I understand this correctly you are only ever going to be able to have it hallmarked as 9ct gold as Peter said so why don't you make it all the same ct or am I missing something?