Dating english gold jewelry
Dating english gold jewelry - dating azdg nederland
When buying a gold necklace, a pair of earrings, a bracelet or ring you really need to look at the Gold content in what your buying and think about what this jewelry will be used for.
When buying gold jewelry you may Purchase 24kt, 18kt, 14kt or 10kt Gold in the USA.
Other countries also allow 9 & 7 kt Gold to be sold. when you add other metal alloys such as copper, silver or palladium the hardness of the gold is increased.
So the 24kt gold will be softest and then 10kt the strongest due to the other metal added to the gold.
24K is pure gold Originally, the gold marks were impressed by a union of goldsmiths.
These goldsmiths are the individuals who examine or check the purity of the gold product, and they are the people that mark the gold in their guild hall.
By this process, the name “hallmark” was originated.
Nowadays, these hallmarks are managed by assay offices.
From this assay office gold products are examined for their purity through several tests.
There are two main methods for testing the purity of Gold.
They are the Touchstone Gold test and the other is using XRAY Fluorescences. This method involves scratching some of the gold along a touch stone and the using different strength acids to determine the purity.
This technique is the fastest way in identifying the fineness of such gold item.
It is also useful with accuracy between 2 to 5 portions per parts.