The mineral known as Spinel is a ceramic compound with the formula MgAl_2O_4 tha

Question

The mineral known as Spinel is a ceramic compound with the formula MgAl_2O_4 that adopts a cubic unit cell, shown below. High-purity Single crystals of Spinel are highly transparent, and much stronger, harder, and tougher than a typical glass This makes it ideal for applications such as scratch and wear resistant 'glass" (remember it's not produced in amorphous form for these applications). Considering the unit cell for Spinel provided below enter the coordination number of Magnesium ions considering Oxygens as the surrounding ion of interest.

Explanation / Answer

Crystal structure

the above crystal structure for MgAl2O4

1 Mg is connected to 4 oxygen atoms

that is it can bound to four oxygen atoms at a certain time in crystal lattice

Thus,

coordination number for Mg = 4

It is tetrahedral in nature.

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