Seven Minerals

Question 1

Native Elements - defining anions

Answer 1

None

Question 2

Native Elements - example

Answer 2

Copper metal (Cu)

Question 2

Native Elements - significance

Answer 2

Used by ancient natives to make metal tools

Question 2

Oxides - significance

Answer 2

Breathing

Question 2

Oxides - defining anions

Answer 2

Oxygen ion (O2-)

Question 3

Oxides - example

Answer 3

Hematite (Fe2O3)

Question 4

Halides - defining anions

Answer 4

Chloride (Cl-), fluoride (F-), bromide (Br-), iodide (I-)

Question 5

Halides - example

Answer 5

Halite (NaCl)

Question 6

Halides - significance

Answer 6

Why the sea tastes salty, drives deep ocean currents

Question 7

Carbonates - defining anions

Answer 7

Carbonate ion (CO3, 2-)

Question 8

Carbonates - example

Answer 8

Calcite (CaCO3)

Question 9

Carbonates - significance

Answer 9

Very important for Earth’s long-term climate stability

Question 10

Sulfates - defining anions

Answer 10

Sulfate ion (SO4, 2-)

Question 11

Sulfates - example

Answer 11

Anhydrite (CaSO4)

Question 12

Sulfates - significance

Answer 12

Industrial processes

Question 13

Silicates - defining anions

Answer 13

Silicate ion (SiO4, 4-)

Question 14

Silicates - example

Answer 14

Olivine (Mg, Fe)2 SiO4

Question 15

Silicates - significance

Answer 15

Most important by mass and volume

Question 16

Sulfides - defining anions

Answer 16

Sulfide ion (S2-)

Question 17

Sulfides - example

Answer 17

Pyrite (FeS2)

Question 18

Sulfides - significance

Answer 18

Source of most economically useful metals