Author: Kerry
(aka: KAK)
Email:
I have a degree in history and archaeology. I've written manuals and museum
publications and try to write simply and concisely. I have been fascinated
with metal detecting since I was eight but I only bought my first detector,
a Bounty Hunter Landstar nine years ago. I do a LOT of research so I could
make the right choice for my needs and got the Minelab Explorer 2 five years
ago I decided to get into beach hunting because although I found lots at
parks, it didn't add up very fast. I started reading the forums last
December about beach hunting and ended up getting the Infinium. I was hoping
that its growing pains were over and the current model and coils had all the
bugs worked out. I just got my Nuttall scoop too and I'm impressed. Much
easier than sloshing around in the west sand with a shovel.
IDing Gold
On the plus side I did learn there are many tests (thanks to other posters
and some research) that you can carry out to identify gold.
1. If it comes out of the ground or the beach clean and looking like gold it
probably is. Most anything else will probably be crusty or tarnished.
2. Check for k markings inside the ring or on the clasp for jewelry.
3. Gold is not magnetic but that material the item is made of may not be
magnetic either.
4. Look for any wear and discoloration as it may be plated.
5. Lick it. If it's brass, you'll get a taste of copper. If it's gold,
you'll get little or none. (the nugget passed this test)
6. Wait a long time. Brass will tarnish. Gold does not tarnish. Or
7. Dip it in vinegar and leave it for 30 minutes to speed up the tarnishing
process. If it looks cleaner or has a red tint it is brass. Gold is not
affected. (the nuggets darkened)
8. Gold is very soft and can be scratched or cut easily with a knife. It can
also be pounded with a hammer and will flatten. Pyrite will break. (the
nuggets were scratched and cut easily)
9. Rub it on an unglazed tile or the bottom of a cup or plate. (Thanks
JDknight34) Gold will leave a yellow streak. Copper leaves a red streak. I
guess brass leaves a yellow streak too
10. Thanks Bubbles. I read your notes on specific gravity
(http://www.findmall.com/read.php?26,1162810) and the nugget came out to
about 1.22. (dry 4.9g, hanging in water 4.3) Gold is 15.6.
11. Apply nitric acid, which will eat away everything but the gold. (I can’t
get nitric acid here)
12. If you’re still unsure, check with a reputable jeweler who can do
non-invasive test.
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