Ch 5 Minerals And Industries Flashcards

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1
Q

Name Some abrasive minerals are..???

A

Silica
Limestone
Aluminium oxide
Phosphate minerals
They do the cleaning.

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2
Q

Name the mineral which comes from Fluorite and it reduces cavities.

A

Fluoride

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3
Q

Name the mineral due to which toothpastes are made white.

A

Titanium oxide
It comes from minerals called Rutile
Ilmenite
Anatase

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4
Q

Name the mineral due to which toothpastes sparkles

A

Mica

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5
Q

What are Minerals??

A

Homogenous, Naturally occuring substance with a definable internal structure.

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6
Q

What’s Rocks?

A

Rocks are combinations of homogenous substances called minerals

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7
Q

On which properties geologists classify the minerals??

A

Range of colours
Hardness
Crystal form
Lustre
Density that a mineral possess

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8
Q

What is ore?

A

It is used to describe an accumulation of any mineral mixed with other elements.

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9
Q

What must be sufficient concentration to make its extraction commercially viable?

A

Mineral content of ore

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10
Q

Where does Igneous and metamorphic rocks occur??

A

In the cracks, crevices, faults and the joints.

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11
Q

What’s veins?

A

Smaller Occurrences

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12
Q

What’s lodes??

A

Larger occurrences

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13
Q

Name Some minerals obtained from lodes and veins ???

A

Metallic minerals like
Tin
Copper
Zinc
Lead

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14
Q

How are Igneous and metamorphic rocks formed??

A

When minerals (in liquid, molten and gaseous forms) are forced upwards ⬆️ through cavities towards the earth’s surface.

They finally cool and solidify as they rise.

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15
Q

Where does sedimentary rocks occur ?

A

In beds or layers .

They are formed due to deposition, Accumulation and Concentration in Horizontal strata..

For eg coal and iron ore conc due to long periods under heat and pressure

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16
Q

Name Some sedimentary minerals??

A

Gypsum
Potash salt
Sodium salt

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17
Q

How is bauxite(non ferrous) formed??????????

A

Step 1
Decomposition of surface rocks
Step 2
Removal of soluble constituents
Step 3
Leaving a residual mass of weathered material containing ores

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18
Q

Where does alluvial deposits occur??

A

In sands of valley floors and the base of hills

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19
Q

What is other name of alluvial deposits??

A

Placer deposits

20
Q

Name Some minerals found in alluvial deposits??

A

They are not corroded by water
Gold
Silver
Tin
Platinum

21
Q

Name Some minerals derived from ocean waters 🌊🌊🌊

A

Common salt
Magnesium
Bromine

22
Q

Ocean beds are rich in??

A

Manganese nodules

23
Q

Which rocks contains most of the reserves of coal ,metallic minerals ,mica and many other non metallic minerals?

A

Peninsular rocks

24
Q

Which rocks on the western and eastern flanks of the Peninsula in Gujarat and Assam have most of the petroleum deposits?

A

Sedimentary rocks

25
Q

Which state of India reserves of many non ferrous minerals exist?

A

Rajasthan with the rock systems of Peninsula

26
Q

What plays an important role in affecting the economic viability of a reserve?

A

Concentration of mineral in the ore
The ease of extraction
Closeness to the market

27
Q

What happens when a choice is made according to economic viability of a reserve?

A

When this is done a mineral deposit or reserve turns into a mine

28
Q

How much of metallic minerals is accounted by ferrous minerals?

A

Ferrous minerals account for about 3/4th of the total value of production of metallic minerals they provide a strong base for the development of metallurgical industries.

29
Q

Iron ore is the finest and how much content of iron is present in it?

A

Magnetite with a very high content of iron up to 70%

30
Q

What is the quality of magnetite?

A

It has excellent magnetic qualities specially valuable in the electrical industry

31
Q

How much content of iron is present in hematite ore?

A

50- 60%

32
Q

Name the major iron ore belts present in India

A

Odisha Jharkhand belt
•Durg baster Chandrapur belt
•Bellary Chitradurga chikkamagaluru tuma Karu belt
• Maharashtra Goa belt

33
Q

Iron ore is found in Odisha and where??

A

Hematite* ore of high grade is found in “badampahar” mines in the Mayurbhanj and kendujhar districts

34
Q

Where in Jharkhand is hematite mined??

A

Singhbhum district of Jharkhand
in Gua and noamundi hills iron ore is mined

35
Q

Where does durg baster Chandrapur belt lies and what type of iron is found in bastard district of Chhattisgarh and where?

A

Durg baster belt lies in Chhattisgarh and Maharashtra

High grade hematite is found in bailadila range of hills in bastard district

36
Q

What does the range of hills compromise of??

A

14 deposits of super high grade hematite

37
Q

For what hematite is best?

A

It has the best physical properties needed for steel making

38
Q

Via Visakhapatnam port in which two countries is iron ore exported?

A

Japan
Korea

39
Q

Where is Bellary Chitradurga belt?

A

Karnataka it has large reserves of iron ore

40
Q

Name the mines located in the Western ghats of Karnataka??

A

Mines kudremukh

41
Q

Which mine of Karnataka is known to be one of the largest deposit in the world

A

Kudramukh deposits

42
Q

Where is the ore transported as slurry through a pipeline?

A

Near Mangalore

43
Q

Which state of India and district of Maharashtra is included in Maharashtra Goa belt,!!!??

A

Goa and Ratnagiri district
ores are exported through Marmagao port

44
Q

Which mineral is mainly used in manufacturing of Steel and ferromagneese alloy

A

Manganese

45
Q

How much maganese is required to manufacture 1 ton of steel

A

10 kg of maganese