Introduction (LAST YEAR quiz)

Question 1

The ability of a mineral to resist hammering

Answer 1

Tough

Question 2

The waste minerals contained in the ore that are not of economic interest

Answer 2

Gangue

Question 3

The enriched product of mineral processing which contains most of the valuable minerals

Answer 3

Concentrates

Question 4

Minerals which contain similar chemical compositions but have different crystal structures resulting to varied physical properties

Answer 4

Polymorphs / Polymorphic Minerals

Question 5

A physical property of a mineral which measures the amount and quality of the light reflected from its surface

Answer 5

Luster

Question 6

Aluminum, being the most abundant metal in earth’s crust, has a relative abundance of?

Answer 6

8.07%

Question 7

This is generally expressed as the percent metal present in a mineral

Answer 7

Mineral Content

Question 8

Refer’s to the Mineral’s degree of transparency or the percentage of light that is transmitted through it.

Answer 8

Diaphaneity

Question 9

Minerals in which metals are extracted

Answer 9

Metallic Minerals

Question 10

this Mineral has a hardness around 6 - 6.5, brass yellow color, metallic luster and a greenish/brownish streak

Answer 10

Pyrite

Question 11

This mineral has a hardness of 2.5, silvery in color, metallic luster, and a lead-grey streak

Answer 11

Galena

Question 12

This mineral is the chief source of Mercury

Answer 12

Cinnabar

Question 13

Chemical Formula of Gypsum

Answer 13

CaSO4 2H2O

Question 14

Anaerobic process of converting an ore into an oxide through heating but without fusion or melting done to remove impurities or volatile components such as the removal of carbon from limestone

Answer 14

Calcination

Question 15

This follows mining and prepares the ore for extraction of the valuable metal in the case of metallic ores or to produce a commercial end product as in the case of mineral such as potash (soluble salts of potassium) and coal

Answer 15

Mineral Benefication

Question 16

The grade of precious metals in reported in terms of

Answer 16

Ounce per Ton

Question 17

The term for the material that is introduced into the unit operations of mineral processing

Answer 17

Feed

Question 18

What mineral deposit has the lowest grade of all mined ores?

Answer 18

Diamond Ore

Question 19

Ores containing profitable amount of more than 2 valuable mineral

Answer 19

Complex ore

Question 20

What is the highest rank of coal? Known as the hard coal

Answer 20

Anthracite

Question 21

Mineral that is also known as Pitchblende

Answer 21

Urarinite

Question 22

Chief Source of Aluminum

Answer 22

Bauxite

Question 23

The emission of light during exposure to ultraviolet and xrays?

Answer 23

Fluorescence

Question 24

Mixture of two or more metals usually for the purpose of Imparting greater strength and to resist corrosion?

Answer 24

Alloying

Question 25

Conversion of Sulfides ore to oxide ores in the presence of air by heating it below its melting point?

Answer 25

Roasting

Question 26

DEFINE Recovery

Answer 26

Recovery in mineral processing refers to the percentage of valuable minerals successfully extracted from the ore during the beneficiation process.

Question 27

DEFINE Cut-off Grade

Answer 27

the minimum grade (concentration) of a mineral in an ore that is considered economically viable to extract.

Question 28

DEFINE Degree of Liberation

Answer 28

refers to the percentage of the mineral as free particles in the ore in relation to the total content.

Question 29

DEFINE Smelting

Answer 29

Smelting is a process used to extract a base metal from its ore by heating the ore beyond its melting point in the presence of a reducing agent (such as carbon) to separate the metal from impurities.

Question 30

DEFINE Leaching

Answer 30

mineral processing to extract valuable metals from their ores by dissolving them in a solvent. This technique is often employed when the desired metals are embedded within ores that are not easily amenable to conventional smelting.

Question 31

minerals where substitution of atoms within the crystal structure by similar atoms take place without affecting the atomic structure, i.e., different composition but same atomic structure.

Answer 31

Isomorphic Minerals

Question 32

A mineral can replaced by another mineral without any change in the external from.

Answer 32

Pseudomorphism

Question 33

the property of some chemical elements to exist in two or more different forms in the same physical states

Answer 33

Allotropism

Question 34

This is a laboratory investigation wherein the output is the mineral form (i.e. sulfide, oxide, carbonate, etc.) of the valuable metal and its liberation size.

Answer 34

Ore Microscopy

Question 35

refers to the practice adapted in the laboratory to determine the size distribution of the particles in a given sample.

Answer 35

Size Distribution

Question 36

The size up to which the particles will be ground to ensure complete liberation or 80% liberation of the valuable mineral.

Answer 36

Mesh of Grind

Question 37

I N WHICH ELEMENTS PRESENT IN THE SAMPLE ARE IDENTIFIED.

Answer 37

QUALITATIVE ANALYSIS

Question 38

In which the quantity of elements or compounds present in the sample is estimated

Answer 38

QUANTITATIVE ANALYSIS