The main mineral constituents of the continental mass are silica (SiO2) and alumina (Al2O3). This combination is often referred to as 'sial' (from silica and alumina). The oceanic crust, in contrast, is mainly composed of silica and magnesium, termed 'sima'.
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120 Mins English English20 Questions20 Marks15 Mins English English200 Questions200 Marks120 Mins EnglishWhich of the following mineral deposits are formed by the decomposition of rocks rich in aluminium silicates?
Which of the following is the finest iron ore with high content of iron upto 70%?
Which of the following statements about mineral resources is incorrect?
Which of the following minerals is contained in bauxite, a clay like substance?
Which of the following is a copper ore?
From the given options, which country has the largest deposit of mica in the world?
In which of the following states are India's richest haematite deposits located?
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