Gold 1-3 Flashcards
(23 cards)
Don’t confuse _____ with ____.
In the U.S.A the first is a unit of gold purity the last is a unit of weight for gemstones.
Karat with a “K”
Carat with a “C”
Karat with a “K”
Carat with a “C”
both originate from which Italian word?
…which Greek word?
Carato
Karation
What does
Carato
Karation
mean…
“Fruit of the Carob tree”
In ancient times what were carob beans used for?
Counterweights when measuring gems and gold.
This was one of the earliest units of weight for gold. It was originally the equivalent of one grain of wheat.
Grain
Outside of the U.S. “Karat” with a “K” is often spelled “____”.
Particularly in the British Commonwealth
“Carat” with a “C”
What does “Hallmarking” refer to?
Goldsmiths hall in London
This thing oversaw the marking of gold in England since 1300.
Hallmarking
Hallmarking is found in European countries such as…
Belgium, France, Britain, Germany, Holland, Italy, Portugal and Denmark.
A mark that indicates the manufacturer, importer or seller of an item (whoever stands behind the quality mark).
Trademark
One pound in Troy Weight equals…
12 Ounces
One ounce in Troy Weight equals…
20 Pennyweights
Troy weight should not be confused with…
Avoirdupois weight
What is electroplating?
When a metal object is dipped in a gold plating solution
and then
an electrical current is used to coat the object with a thin layer of gold.
The thickness and of the gold as during the electroplating process is depends on what?
The amount and duration of current.
Electroplated gold is commonly stamped…
GEP
In order for piece of jewelry to be called “Gold Electroplate” it has to be _______ of an inch thick.
.007
or
7/1000
Vermeil can be created via _____ or ________
Electroplating
Mechanical Bonding
The way in which Gold Plate (GP)/Rolled Gold Plate (RGP) be indicated on jewelry is…
“1/40 12 Kt RGP”
meaning
The piece has been bonded with 12Kt gold which is 1/40th of the piece’s total weight.
Most ____ is done by machine, but there is still a demand for skilled_____
Engraving/Engravers
Some people in the trade use these two words interchangeably because they are both produced via sandblasting.
Sand blasted
and
Glassbeaded
Solder is design to ________ than the metals to be joined.
melt a lower temperature.
In order to solder the jewelry, a producer will use solder that, ________________________, followed by ____________________________________, and_____________________.
Melts at the highest temperature
the solder that melts at the second lowest temperature,
so on until the two piece are bound.
