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| Precious metals |
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As you probably know, gold is
labelled in different carats (8, 14, 18 and 24 carat), these labels tell about how much
pure gold the metal contains.
This is used on all alloys (alloy = mixture of metals) of precious metals, and is shown
by a number which tells the exact amount of precious metal the alloy contains.
Anyone who has taken a good thorough look on a piece of silver jewellery, has probably seen the
stamp showing 925s or just 925, this telles that at least 925 per thousand (925/1000)
of the metal is pure silver.
8 kt. gold is stamped 333 (333/1000)
14 kt. gold is stamped 585 (585/1000)
18 kt. gold is stamped 750 (750/1000)
24 kt. gold is stamped 999 (999,9/1000)
999 is never seen in jewellery, because it is almost impossible to do in practice, this is
used in raw metals.
Gold can be obtained in different colors, this is made by using different metals (e.g.
copper, silver or platin) in the alloy, but the gold content is always the same.
When you puts an alloy-stamp in a piece of metal, the law tells that you are required
to put a namestamp into the metal too, this is to show who it is that guarantees
that the metal contains the amount of precious metal that is claimed by the alloy-stamp.
In Denmark it is Force Technology
that conducts the supervision on the people/companies that has the right to stamp the
precious metals, this is done by unannounced visits where samples is taken from the metals
in the companies.
It is allowed to put your namestamp in a piece of metal without putting a alloy-stamp in
it, this can tell something about who has made the jewellery, but does not tell which
metal it is (e.g. bronze).
My namestamp is ADJ and can be found in Force Technologys
database.
You can see an example of my stamp here,
combined with the alloy-stamp (925 = silver) and my
bind-rune.
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