High-pressure synchrotron X-ray diffraction study of tremolite and actinolite in various fluids

Mihye Kong, Thomas Vogt, Yongjae Lee

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2 Citations (Scopus)


Pressure-dependent structural and morphological changes of two amphibole minerals, tremolite and actinolite, were investigated up to 7.0 GPa using synchrotron X-ray powder diffraction underthree different pressure transmission media (PTM): water (W), CO2 and silicone oil (SI). The elastic response of tremolite and actinolite are found to be dependent on the PTM used. When using water (W) as PTM, tremolite and actinolite show normal volume contractions with bulk moduli of 74(1) and 78(1) GPa, respectively. When using CO2 as PTM, we observe the formation of calcite from tremolite above 3.8(1) GPa, whereas actinolite did not show any carbonation reaction. Under silicone oil PTM, we observe modulated volume contraction behaviors in both samples, compared to water and CO2 PTM, with bulk moduli in the order of 90(1) and 94(4) GPa for tremolite and actinolite, respectively.

Original languageEnglish
Pages (from-to)1218-1224
Number of pages7
JournalCurrent Applied Physics
Issue number11
Publication statusPublished - 2018 Nov

Bibliographical note

Publisher Copyright:
© 2018 Korean Physical Society

All Science Journal Classification (ASJC) codes

  • General Materials Science
  • General Physics and Astronomy


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