From Gold To Jewellery Flashcards
Why is gold worth a lot?
Because it is rare.
What do we use to measure if gold is pure?
Carats
Why do jewelers mix gold with other metals such as silver and copper?
Pure gold is very soft.
What do metals such as silver and copper do to gold when they are mixed?
Stronger and cheaper
How many carats is pure gold?
24
If gold is 18 carat, it is how much pure gold?
3\4 pure gold
If gold is 12 carat it is how much pure gold?
1/2
What do we use to measure the weight of gold?
Ounces
How much is an ounce?
28 grams
Mining South African gold for jewellery? (7)
Stage 1- getting the gold out of the rock
Mining Crushing rock Separating rock and gold Smelting Pouring Gold bar Transporting
Mining South African golfs for jewelry?
Stage 2- making the gold into jewelry (3)
Manufacturing
Selling jewelry
Gold jewelry
What is the value of an ounce of gold at the end of stage 1?
$1 750
What’s the value of an ounce of gold at the end of stage 2?
$3 500
Name of the most valuable minerals on the planet?
Gold