Which one of the following minerals is formed by decomposition of rocks, leaving a residual mass of weathered material?
(a) coal
(b) bauxite
(c) gold
(d) zinc
ANS (b) bauxite
Koderma, in Jharkhand is the leading producer of which one of the following minerals?
(a) bauxite
(b) mica
(c) iron ore
(d) copper
ANS (b) mica
Minerals are deposited and accumulated in the stratas of which of the following rocks?
(a) sedimentary rocks
(b) metamorphic rocks
(c) igneous rocks
(d) none of the above
ANS (a) sedimentary rocks
Which one of the following minerals is contained in the Monazite sand?
(a) oil
(b) uranium
(c) thorium
(d) coal
ANS (c) thorium
| Ferrous minerals | Non-ferrous minerals |
| Metallic minerals which contain iron are called ferrous minerals, e.g. iron ore, manganese, nickel, cobalt, etc. | Metallic minerals which do not contain iron are called non-ferrous minerals, e.g. copper, bauxite, tin, etc. |