Identifying minerals

Question 1

What other factor besides air and water can change the color of a mineral

Answer 1

Impurities

Question 2

The way s surface reflects light is called

Answer 2

Luster

Question 3

What are the 3 types of luster

Answer 3

1. metallic
2. submetallic
3. nonmetallic

Question 4

The color of a mineral in powdered form is called the minerals

Answer 4

Streak

Question 5

Why is a using a minerals stream more reliable than using color to identify a mineral

Answer 5

It’s color is unaffected by water or air

Question 6

Name 2 minerals with cleavage

Answer 6

Mica and halite

Question 7

The tendency of some minerals to break unevenly along curved or irregular surface is called

Answer 7

Fracture

Question 8

You can rub off a blank but can’t rub off a blank

Answer 8

Streak/scratch

Question 9

A minerals resistance to being scratched is called
A. Weight
B. Streak
C. Luster
D. Hardness

Answer 9

D-hardness

Question 10

What do scientists use to determine the hardness of minerals

Answer 10

Mohs hardness scale

Question 11

What is the softest mineral on the mohs scale

Answer 11

Talc

Question 12

The ratio of a substance to the volume of the volume is its what

Answer 12

Density

Question 13

What substances is the usual reference point for the density of other substances

Answer 13

The mass of another object

Question 14

The ratio of an objects density to the density of water is called the objects what

Answer 14

Specific gravity

Question 15

How do you find a objects specific gravity

Answer 15

Dry weight divide by dry weight subtract wet weight

Question 16

The special property of calcite and fluorite that causes them to glow under ultraviolet light is called

Answer 16

Fluorescence

Question 17

A Geiger counter can be used to detect blank in a mineral

Answer 17

Radiation

Question 18

A special property of pyrrhotite is that it is a natural blank that attracts iron

Answer 18

Magnet