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...Cbse notes class social science geography chapter minerals and energy resources you have studied that the earth s crust is made up of different embedded in rocks various metals are extracted from these after refinement all stages development human beings use for their livelihood decoration festivities religious ceremonial rites this will learn about classification how to conserve types we can compiled important topics what a mineral defined as homogenous naturally occurring substance with definable internal structure found varied forms nature ranging hardest diamond softest talc combinations homogeneous substances called mode occurrence usually ores term ore used describe an accumulation any mixed other elements generally occur following igneous metamorphic may cracks crevices faults or joints sedimentary number beds layers decomposition surface removal soluble constituents also alluvial deposits sands valley floors base hills ocean waters contain vast quantities ferrous account three ...