In this work, we determined the structural and electronic properties of Zn1？xMgxO wurtzite minerals, where the Mg concentration, x, varies between 0 and 1. These properties were studied using the Quantum Espresso code, which is based on density functional theory (DFT) and pseudopotentials. All calculations were performed using the Generalized Gradient Approximation (GGA) with the exchange-correlation potential in the Perdew-Burke-Ernzerhof (PBE) formalism. The results show that the bandgap energies increase as the molar fractions of Mg increase. They also show that the valence band comprises three regions: a deep region resulting from the contribution of oxygen s states, an intermediate region resulting mainly from the contribution of zinc d states, and finally, a region corresponding to the valence band maximum and resulting essentially from oxygen p states. However, the conduction band consists mainly of zinc s states, magnesium s and p states, and oxygen p states.
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