Introduction part 1

Question 1

____ is a substance having definite chemical composition and internal atomic structure and formed by the inorganic processes of nature.

Answer 1

Mineral

Question 2

____ are the minerals from which a metal is extracted

Answer 2

Metallic Minerals

Question 3

1. ________are the minerals used for industrial purposes for making cement, refractories, glass and ceramics, insulators, fertilizers etc. These minerals are also called 2.______

Answer 3

1. Non-metallic Minerals
2. Industrial Minerals

Question 3

The third type, (1____), is considered a mineral and is sometimes spoken of as (2) in trade, industry and legal affairs.

Answer 3

1. Coal
2. Mineral Coal

Question 4

Why is it in a restricted technical sense, coal is not considered as mineral?

Answer 4

because coal is organic in composition and formed from decaying vegetation and mineral matter.

Question 5

What is Ore?

Answer 5

also an aggregation of several minerals from which one or more minerals can
be exploited/separated at profit

Question 5

What is Rock?

Answer 5

an aggregation of several minerals as occurred in the earth’s crust

Question 5

those minerals which contain an economically exploitable quantity of some metal or non-metal

Answer 5

Ore Minerals or Valuable Minerals

Question 6

usually the non-metallic minerals associated with ore minerals which are worthless as a source for that metal or otherwise.

Answer 6

Gangue Minerals

Question 7

the natural deposits of ore minerals.

Answer 7

Ore Deposits

Question 8

an aggregation of valuable and gangue minerals.

Answer 8

Ore

Question 9

one from which a single metal can be extracted. For example, only Iron is extracted from Hematite ore, Aluminum is extracted from Bauxite ore, Chromium is extracted from Chromite ore, etc.

Answer 9

Simple Ore

Question 10

one from which two or more metals can be extracted. Lead, Zinc and Copper metals are extracted from Lead-Zinc-Copper Ore.

Answer 10

Complex Ore

Question 11

is generally expressed in percent of metal present in the mineral. It is calculated by taking the atomic weights of the elements present in the mineral.

Answer 11

Metal Content of a Mineral

Question 12

the percent metal, percent valuable mineral, or ounces precious metal per ton depending upon the type of ore involved.

Answer 12

Assay Value or Tenor

Question 13

is a relative term used to represent the value of an ore.

Answer 13

Grade

Question 14

an ore having a high assay value

Answer 14

High Grade Ore

Question 15

an ore having a low assay value

Answer 15

Low Grade Ore

Question 16

other terms of common usage where an ore with a high assay value is (1) and an ore with low assay value is (2).

Answer 16

Rich Ore and Lean Ore

Question 16

The Ore having an assay value between that of high and low value is called

Answer 16

Medium Grade Ore

Question 16

can be defined as processing of raw minerals to yield marketable products and waste by means of physical or mechanical methods in such a way that the physical and chemical identity of the minerals are not destroyed

Answer 16

Mineral beneficiation

Question 16

Separation of the wanted part from the aggregation of wanted and unwanted parts by physical methods is termed as

Answer 16

Beneficiation

Question 17

an ore directly taken from the mine, as it is mined.

Answer 17

Run-of-mine Ore

Question 18

Detachment or freeing of dissimilar particles from each other i.e. valuable mineral particles and gangue mineral particles

Answer 18

Liberation

Question 19

Actual separation of liberated dissimilar particles i.e., valuable mineral particles and gangue mineral particles

Answer 19

Separation

Question 20

are essential operations of any plant without which no plant exists.

Answer 20

Supporting Operations

Question 21

The operations conducted on any material that involve physical changes are termed

Answer 21

Unit Operations

Question 22

Ore deposits are divided into three great types as given

Answer 22

Igneous Sedimentary Metamorphic

Question 23

State of aggregation | 7 ni sila kabuok

Answer 23

a Form b Habit c Pseudo morphism, Polymorphism and Polytipism d Cleavage e Fracture g Hardness h Tenacity

Question 24

Characters dependent upon light | 6 ni sila kabuok

Answer 24

a Color b Streak c Luster d Transparency e Phosphorescence f Fluorescence

Question 25

The identification of minerals by their physical properties is termed as

Answer 25

Megascopic Identification

Question 26

Transparent minerals are identified under

Answer 26

Petrological or Mineralogical microscope

Question 27

opaque minerals are identified under

Answer 27

Ore Microscope