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How to ID gold karat


#1

Hi Group,

While learning to alloy and roll my own gold, I’ve accidentally
mixed up some of the karats of rolled gold sheets(small
quanities).How can I ID the karat ?I dont have a gold tester(yet).
Heat? color? I’m not quite experienced enough to visually see much
difference between 22k and 18k. Is there another sure way to tell?

Also, can some one offer tips for rolling my gold sheets thin as to
where the gauge is even all the way through with a very smooth
surface?

Thanks for the help,
Nancy


#2

while I’m thinking of a way for you to id gold without any test
acids, that would be accurate it would help to know what karts you
started with, and what if any deox or alloys you added to the
crucible, and as far as the second half of the question i have no
clue what you are even talking about…please explain.

if you want leaf?, or foil? or what? also are your rollers smooth
and clean and well lubricated?

R.E. Rourke


#3

Here’s more info on the gold ID question I posed earlier.

I used no deox. I alloyed 14k scrap up to 18k yellow And 22k from 24k
grains

The sheets in question are either 18 or 22k

When I asked about rolling smooth even gauge sheets I was wanting 26
-28 ga. sheet not foil or leaf. Yes, the rollers are very clean. I
may
be trying to roll gauge down too quickly,I thought when reducing the
gauge of gold by rolling it should be done in as few rolls as
possible. Right or wrong?

Thanks again.
Nancy


#4
When I asked about rolling smooth even gauge sheets I was wanting
26 -28 ga. sheet not foil or leaf. Yes, the rollers are very clean.
I may be trying to roll gauge down too quickly,I thought when
reducing the gauge of gold by rolling it should be done in as few
rolls as possible. Right or wrong? 

I’d say wrong. I usually go one-half turn (of the T-shaped “wheel” on
top) at a time.