STEM Flashcards
(4 cards)
1
Q
What is jewellery not usually made 100% of?
A
Jewellery is not usually made up of 100% gold
2
Q
Why is jewellery not made 100% of pure gold?
A
Because pure gold is very soft and can deform easily
3
Q
Why is jewellery usually made of alloys? What are some examples?
A
Jewellery tends to be made up of alloys because they can add strength to the pure metals. Some examples are Sterling; Palladium White Gold, Rose Gold; Mexican Silver, Yellow Gold
4
Q
What is the composition of sterling silver, palladium white gold, rose gold, Mexican silver and yellow gold?
A
- Sterling silver (92.5% silver and 7.5% copper)
- Palladium White Gold (75% gold and 25% palladium)
- Rose Gold (75% gold and 25% copper)
- Mexican Silver (95% silver and 5% copper)
- Yellow Gold (75% gold and 25% zinc, cobalt, silver, or copper)
