Ch 5 Minerals And Industries Flashcards
Name Some abrasive minerals are..???
Silica
Limestone
Aluminium oxide
Phosphate minerals
They do the cleaning.
Name the mineral which comes from Fluorite and it reduces cavities.
Fluoride
Name the mineral due to which toothpastes are made white.
Titanium oxide
It comes from minerals called Rutile
Ilmenite
Anatase
Name the mineral due to which toothpastes sparkles
Mica
What are Minerals??
Homogenous, Naturally occuring substance with a definable internal structure.
What’s Rocks?
Rocks are combinations of homogenous substances called minerals
On which properties geologists classify the minerals??
Range of colours
Hardness
Crystal form
Lustre
Density that a mineral possess
What is ore?
It is used to describe an accumulation of any mineral mixed with other elements.
What must be sufficient concentration to make its extraction commercially viable?
Mineral content of ore
Where does Igneous and metamorphic rocks occur??
In the cracks, crevices, faults and the joints.
What’s veins?
Smaller Occurrences
What’s lodes??
Larger occurrences
Name Some minerals obtained from lodes and veins ???
Metallic minerals like
Tin
Copper
Zinc
Lead
How are Igneous and metamorphic rocks formed??
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.
Where does sedimentary rocks occur ?
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
Name Some sedimentary minerals??
Gypsum
Potash salt
Sodium salt
How is bauxite(non ferrous) formed??????????
Step 1
Decomposition of surface rocks
Step 2
Removal of soluble constituents
Step 3
Leaving a residual mass of weathered material containing ores
Where does alluvial deposits occur??
In sands of valley floors and the base of hills
What is other name of alluvial deposits??
Placer deposits
Name Some minerals found in alluvial deposits??
They are not corroded by water
Gold
Silver
Tin
Platinum
Name Some minerals derived from ocean waters 🌊🌊🌊
Common salt
Magnesium
Bromine
Ocean beds are rich in??
Manganese nodules
Which rocks contains most of the reserves of coal ,metallic minerals ,mica and many other non metallic minerals?
Peninsular rocks
Which rocks on the western and eastern flanks of the Peninsula in Gujarat and Assam have most of the petroleum deposits?
Sedimentary rocks
Which state of India reserves of many non ferrous minerals exist?
Rajasthan with the rock systems of Peninsula
What plays an important role in affecting the economic viability of a reserve?
Concentration of mineral in the ore
The ease of extraction
Closeness to the market
What happens when a choice is made according to economic viability of a reserve?
When this is done a mineral deposit or reserve turns into a mine
How much of metallic minerals is accounted by ferrous minerals?
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.
Iron ore is the finest and how much content of iron is present in it?
Magnetite with a very high content of iron up to 70%
What is the quality of magnetite?
It has excellent magnetic qualities specially valuable in the electrical industry
How much content of iron is present in hematite ore?
50- 60%
Name the major iron ore belts present in India
Odisha Jharkhand belt
•Durg baster Chandrapur belt
•Bellary Chitradurga chikkamagaluru tuma Karu belt
• Maharashtra Goa belt
Iron ore is found in Odisha and where??
Hematite* ore of high grade is found in “badampahar” mines in the Mayurbhanj and kendujhar districts
Where in Jharkhand is hematite mined??
Singhbhum district of Jharkhand
in Gua and noamundi hills iron ore is mined
Where does durg baster Chandrapur belt lies and what type of iron is found in bastard district of Chhattisgarh and where?
Durg baster belt lies in Chhattisgarh and Maharashtra
High grade hematite is found in bailadila range of hills in bastard district
What does the range of hills compromise of??
14 deposits of super high grade hematite
For what hematite is best?
It has the best physical properties needed for steel making
Via Visakhapatnam port in which two countries is iron ore exported?
Japan
Korea
Where is Bellary Chitradurga belt?
Karnataka it has large reserves of iron ore
Name the mines located in the Western ghats of Karnataka??
Mines kudremukh
Which mine of Karnataka is known to be one of the largest deposit in the world
Kudramukh deposits
Where is the ore transported as slurry through a pipeline?
Near Mangalore
Which state of India and district of Maharashtra is included in Maharashtra Goa belt,!!!??
Goa and Ratnagiri district
ores are exported through Marmagao port
Which mineral is mainly used in manufacturing of Steel and ferromagneese alloy
Manganese
How much maganese is required to manufacture 1 ton of steel
10 kg of maganese
