Notes and Study material for Exams
Minerals of Odisha Odisha topped among all the states as it contributed above 10% to total mineral production in the country. The value of principal minerals produced remained at Rs. 22567.67 crore, an increase of 31.64% over the previous year period. The value of minor minerals remained Rs. 85.68 crores. Coal, bauxite, chromite, iron & … Read more
Mineral Resources of Tamil Nadu Tamil Nadu is the leading holder of country’s resources of vermiculite, magnetite, dunite, rutile, garnet, molybdenum and ilmenite. The State accounts for the country’s 81% lignite,75% vermiculite, 69% dunite, 59% garnet, 52% molybdenum and 30% titanium Minerals resources. Important minerals that are found to occur in the State are … Read more
Metallurgy of Copper Copper Mining: The commonest Ore used in the extraction of copper is Chalcopyrite (CuFeS2) also known as Copper Pyrites and other such sulfides. The Percentage of copper in the actual ore is too low for direct extraction of copper to be viable. The concentration of ore is required and it is done by the Froth Flotation … Read more
Uttar Pradesh is the principal holder of country’s andalusite & diaspore Resources and possesses 78% andalusite 37% diaspore and 10% pyrophyllite. Important Minerals occurring in Uttar Pradesh are: coal in Singrauli coalfields,Sonbhadra district. diaspore & pyrophyllite in Hamirpur, Jhansi, Lalilpur and Mahoba districts. Naini area of Allahabad contains High quality of silica sand, an important … Read more
Mineral Resources : Iron-Ore: India possesses high quality iron-ore in abundance. The total reserves of iron-ore in the country are about 14.630 million tonnes of haematite and 10,619 million tonnes of magnetite. Haematite iron is mainly found in Chbattisgarh, Jharkhand, Odisha, Goa and Karnataka. The major deposit of magnetite iron is available at western coast … Read more
Minerals Minerals are defined as solid, inorganic, naturally occurring substances with a definite chemical formula and general structure. Almost all chemical Elements in the Earth’s crust are associated with at least one mineral. They vary in color, hardness, density, crystal form, crystal size, transparency, composition, location, and abundance. Some minerals are radioactive (uranophane), while others … Read more
Bihar Minerals Introduction The mineral base of this state is very rich. Particularly the Chotanagpur plateau is very mineral rich field. It has an extensive and high quality coal deposits. Iron Ore and copper ore are also produced in Bihar. Bauxite, ore for aluminiumis also found here. This state has a reserve of pyrites and … Read more
Copper Age Chalcolithic age in India is the first Metal age. Metals like copper and its Alloy bronze are melted at low temperature. The important sites of this period are the Indus valley sites. The Chalcolithic culture of Central, Eastern and Southern regions of India show altogether different features. The Chalcolithic culture represents the farming … Read more
Acid An acid is a substance which forms H+ ions as the only positive ion in aqueous solution. Examples:- Hydrochloric acid dissolved in water forms H+ and Cl– ions HCl —> H+ + Cl– Sulphuric acid dissolved in water forms H+ and SO42- ions H2SO4 —>2H+ + SO42- Nitric acid forms H+ and NO3– ions when dissolved in water HNO3 —> H+ + NO3– … Read more
Minerals in Chattisgarh–Chhattisgarh is rich in minerals. It produces 20% of the country’s total cement produce. It has the highest output of coal in the country with second highest reserves. Chattisgarh is third in iron Ore production and … Read more