The high-pressure structural configurations of Ca0.2Sr0.8Al2Si 2O8 feldspar:The I1-I2/c and I2/c-P21/c phase transitions

Key Points

• The phase transitions from I1-I2/c to I2/c-P21/c occur under high-pressure conditions, indicating structural changes.
• X-ray diffraction techniques provide critical data showing clear distinctions between the structural configurations of the feldspar phases.
• Analysis of crystal structures highlights the significant alterations that influence the material properties of feldspar in geological contexts.
• Understanding these transformations may help in advancing mineral identification methods in high-pressure environments.