Structural defects in synthetic tremolitic amphiboles

Ho Ahn Jung Ho Ahn, Cho Moonsup Cho, D. M. Jenkins, P R Buseck

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

Synthetic hydroxyl tremolite, fluor-tremolite, and magnesio-hornblende together with two natural tremolite samples were investigated using high-resolution transmission electron microscopy (HRTEM). Chain-width defects are widespread in both hydroxyl tremolite and magnesio-hornblende synthesized at pressures and temperatures ranging from 2 to 10 kbar and 701 to 853°C. In contrast, fluorine tremolite synthesized at 2.13 kbar and 1000°C is virtually free of such defects, similar to natural tremolite that is completely ordered. The degree of structural ordering is given for each mineral. Temperature is apparently the most critical experimental variable affecting the number of chain-width defects in synthetic amphiboles. In addition, the seeding technique using defect-free natural tremolite greatly increases the structural order in synthetic amphibole. -from Authors

Original languageEnglish (US)
Pages (from-to)1811-1823
Number of pages13
JournalAmerican Mineralogist
Volume76
Issue number11-12
StatePublished - 1991

Fingerprint

Amphibole Asbestos
tremolite
amphiboles
amphibole
defect
Defects
defects
hornblende
Hydroxyl Radical
inoculation
fluorine
minerals
Fluorine
transmission electron microscopy
temperature
High resolution transmission electron microscopy
seeding
high resolution
Minerals
Temperature

ASJC Scopus subject areas

  • Geochemistry and Petrology
  • Geophysics

Cite this

Jung Ho Ahn, H. A., Moonsup Cho, C., Jenkins, D. M., & Buseck, P. R. (1991). Structural defects in synthetic tremolitic amphiboles. American Mineralogist, 76(11-12), 1811-1823.

Structural defects in synthetic tremolitic amphiboles. / Jung Ho Ahn, Ho Ahn; Moonsup Cho, Cho; Jenkins, D. M.; Buseck, P R.

In: American Mineralogist, Vol. 76, No. 11-12, 1991, p. 1811-1823.

Research output: Contribution to journalArticle

Jung Ho Ahn, HA, Moonsup Cho, C, Jenkins, DM & Buseck, PR 1991, 'Structural defects in synthetic tremolitic amphiboles', American Mineralogist, vol. 76, no. 11-12, pp. 1811-1823.
Jung Ho Ahn HA, Moonsup Cho C, Jenkins DM, Buseck PR. Structural defects in synthetic tremolitic amphiboles. American Mineralogist. 1991;76(11-12):1811-1823.
Jung Ho Ahn, Ho Ahn ; Moonsup Cho, Cho ; Jenkins, D. M. ; Buseck, P R. / Structural defects in synthetic tremolitic amphiboles. In: American Mineralogist. 1991 ; Vol. 76, No. 11-12. pp. 1811-1823.
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