Lavrentiev et al. (vol. 88, 1522–1531, 2003) extends Monte Carlo computer simulations to the thermodynamics of spinel ordering over a range of T and P. Starting with MgAl2O4, several spinel end-members are considered, and experimental data from recent literature are processed.

The authors state that “a contentious issue is the thermal expansion of spinels. For example, for MgAl2O4, Andreozzi et al. (2000) reported that the lattice parameter actually decreases between 600 and 1100 °C, in contradiction, as shown in Figure 2a, to the results of...”

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There is no contradiction here at...

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