Minerals Unit 1

Question 0

Elements

Answer 0

Pure substances that cannot be broken down into simpler substances by ordinary chemical means

Question 1

What is a mineral

Answer 1

I naturally formed, inorganic solid that has a definite crystalline structure

Question 2

Crystals

Answer 2

A solid who’s atoms, ions, or molecules are arranged a definite pattern

Question 3

Silicate minerals

Answer 3

The mineral that contains a combination of silicon, oxygen, and one or more metals

Question 4

Non-silicate minerals

Answer 4

A mineral that does not contain compounds of silicon and oxygen

Question 5

Classes of non-silicate minerals

Answer 5

Native elements, oxides, carbonates, sulfates, halides, sulfides

Question 6

Luster

Answer 6

The way in which a mineral reflects light

Question 7

Streak

Answer 7

The color of the powder of a mineral

Question 8

Cleavage

Answer 8

The splitting of the mineral long smooth, flat surfaces

Question 9

Fracture

Answer 9

The manner in which a mineral breaks on either curved a irregular surfaces

Question 10

Hardness

Answer 10

A measure of the ability of a mineral to resist scratching

Question 11

Density

Answer 11

The ratio of the mass of a substance to the volume of a substance

Question 12

Special properties of some minerals

Answer 12

Florescence, chemical reaction, optical properties, magnetism, taste, radioactivity

Question 13

How minerals form

Answer 13

Minerals form of earths crust. There are different environments that determine the minerals properties.

Question 14

Ore

Answer 14

A natural material whose concentration of economically valuable minerals is high enough for the mineral to be mined profitably

Question 15

Surface mining

Answer 15

When mineral deposits are located at or near the surface of the earth. Open pit, surface coal mines, and quarries.

Question 16

Subsurface mining

Answer 16

When mineral deposits are located too deep within earth to be surface mined. Often requires passageways to be dug and sometimes a vertical shaft.

Question 17

Reclamation

Answer 17

The process of returning land to its original condition after mining is completed

Question 18

Metallic minerals

Answer 18

Shiny surfaces, do not let light pass through them, good conductors of heat and electricity

Question 19

Nonmetallic minerals

Answer 19

Shiny or dual services, may let light pass through them, good insulators of electricity

Question 20

Gemstones

Answer 20

Nonmetallic minerals that are highly valued for their beauty and rarity