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Figure 4
Variation of the unit-cell parameters and linear moduli of quartz with temperature at room pressure. Data points are from Carpenter, Salje, Graeme-Barber, Wruck et al. (1998BB12) and Lakshtanov et al. (2007BB20). Red lines are a linear EoS for the a axis fitted to the same PT data as used to determine the volume EoS (Angel et al., 2017BB5). The blue lines for the c axis are not fitted to the data, but are calculated from the volume and a-axis EoSs. The α–β phase transition in quartz is marked by the vertical dashed line.

Journal logoJOURNAL OF
APPLIED
CRYSTALLOGRAPHY
ISSN: 1600-5767
Volume 54| Part 6| December 2021| Pages 1621-1630
https://doi.org/10.1107/S1600576721009092
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