Key Words

Question 1

Alloy

Answer 1

A mixture of two or more metals made by melting them together.

Question 2

Base Metal

Answer 2

Nonprecious metal such as copper, nickel or zinc

Question 3

Pewter

Answer 3

A Tin Alloy

Question 4

Atleast what percentage of pewter consists on tin?

Answer 4

90%

Question 5

What are 5 metals that are used to alloy tin?

Answer 5

1) Antimony,
2) Copper,
3) Lead,
4) Bismuth and
5) Zinc.

Question 6

Platinum Group Metals (PGM)

Answer 6

Platinum and five other metals that are chemically and physically similar and deposited with it.

Question 7

What are the 5 PGMs that are often deposited with Palladium?

Answer 7

1) Palladium
2) Iridium
3) Osmium
4) Rhodium
5) Ruthenium

Question 8

What are some metals used to make platinum alloys?

Answer 8

1) Ruthenium
2) Palladium
3) Cobalt
4) Iridium
5) Copper

Question 9

Precious metals

Answer 9

Investment commodities with an inherent currency value as jewelry and industrial metals.

Question 10

Whats are examples of precious metals?

Answer 10

Gold, Silver and PGMs

Question 11

Tensile Strength

Answer 11

A metals ability to withstand the stress of stretching. This is required by the amount of force required break a specific unit area of a wire or material.

Question 12

Hardness

Answer 12

A metals ability to withstand scratching.

Question 13

Why are precious metals alloyed?

Answer 13

To make them harder and more resistant to wear.

Question 14

What 2 are scales are most commonly used for metals?

Answer 14

Vickers and Brinell Hardness Scales

Question 15

Fine Gold

Answer 15

Gold containing no other elements or metals.

Question 16

What are 2 other names for Pure Gold?

Answer 16

Fine gold,
24K gold

Question 17

What number represents the fineness of pure gold?

Answer 17

999

Question 18

Fineness

Answer 18

The amount of gold and platinum in relation to 1000 parts.

Question 19

Karat (Carat)

Answer 19

A measure of gold purity

Question 20

How pure is 1k gold (in fraction)?

Answer 20

1/24th

Question 21

Carat

Answer 21

The weight of gemstones.

Question 22

What is the difference between Karat and Carat?

Answer 22

Karat is referring to the purity of gold while Carat is refered to the weight of gemstones.

Question 23

True or False: Outside of the US “Karat” is often Spelled “Carat” particularly in countries that are member of the british commonwealth.

Answer 23

True

Question 24

Karat Gold

Answer 24

A gold alloy which in the US must have a fineness of atleast 10k.

Question 25

What 4 countries require gold alloys to be atleast 9k to be considered Gold.

Answer 25

1) UK
2) Spain
3) Japan
4) Canada

Question 26

What 2 countries require gold alloys to be atleast 8k to be considered gold?

Answer 26

Mexico and Germany.

Question 27

What 2 countries require gold alloys to be atleast 18k to be considered gold?

Answer 27

France and Italy

Question 28

Plum Gold

Answer 28

Gold that has the same purity as the mark stamped on it. For example 14KP

Question 29

What are the 2 other terms for Fine Gold?

Answer 29

Pure Gold and 24k gold

Question 30

Solid Gold

Answer 30

Gold that is not hallow

Question 31

Vermeil

Answer 31

Sterling silver covered with atleast 120/millionth of an inch of fine gold.

Question 32

Whats are two techniques used to create vermeil jewelry?

Answer 32

Electroplating or Mechanical Bonding

Question 33

Avoirdupois weight

Answer 33

The weight system used in the U.S. for food and people and almost everything except precious metals and gems.

Question 34

What is 1avoirdupois in ounces?

Answer 34

15 ounces

Question 35

Carat

Answer 35

A unit of weight for gems.

Question 36

What i 1 carat in grams?

Answer 36

1/5 of a gram.

Question 37

What is a grain in pennyweight?

Answer 37

A measurement of weight equaling 1/24 of a pennyweight.

Question 38

Pennyweight

Answer 38

Unit of weight equaling 1/20 of a troy ounce.

Question 39

Where is pennyweight mostly used for jewelry trade?

Answer 39

In the US