CBJ Metal Properties and Alloys 2

Question 1

What metal is added in higher quantities to create rose gold?

Accepted Answer

Copper

Answer

Rose gold achieves its pinkish-red color from an elevated copper content in the gold alloy.

Question 2

What percentage of pure gold is found in 18-karat gold?

Accepted Answer

75%

Answer

18-karat gold contains 75% pure gold, calculated by dividing 18 by 24.

Question 3

Which metals are typically used to achieve the white color in white gold alloys?

Accepted Answer

Nickel or palladium

Answer

White gold is alloyed with nickel or palladium to produce a white appearance, then often rhodium-plated for brightness.

Question 4

What makes Argentium silver different from standard sterling silver?

Accepted Answer

Addition of germanium for tarnish resistance

Answer

Argentium silver contains germanium, which significantly improves tarnish resistance compared to traditional sterling silver.

Question 5

Which physical property makes gold ideal for fabricating pieces requiring fine engraved or chased detail?

Accepted Answer

Exceptional malleability

Answer

Gold's exceptional malleability allows it to be worked into extremely fine detail without cracking or tearing.

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