A prefix meaning large, the opposite of micro
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Category: <span>M</span>
The collection or removal of ferrous material by use of magnetism
A random concentration of iron rich ore
A light, silvery-grey and very common metal. Symbol, Mg. Its principal ore is magnesite and dolomite
The concentration of minerals by density within a magmatic system, prior to cooling
The extremely hot volcanic fluid which forms rock when cooled
Dark igneous rocks typically high in iron and magnesium
A deposit of sedimentary material which has settled underwater
Rock derived from recrystallization of limestone, metamorphisized through heat and pressure
The layer within the Earth between the crust and the molten core