R1: Characterization and description of minerals

11:30 AM - 11:45 AM JST(2:30 AM - 2:45 AM UTC)

[R1-08] Two types of fine structure in the infrared OH-stretching bands of gedrite-group amphiboles

*Kiyotaka Ishida¹, Frank C. Hawthorne (1. Non)

Keywords:

gedrite,OH-stretching band,fine structure

Below about 3690 cm^-1, two types of fine structure in the OH-stretching bands with vacant A-site occur due to the two types of configurations of SiSi and SiAl at adjacent T1T1 tetrahedra.