High Pressure Elastic Behavior of Synthetic Mg₃Y₂(SiO₄)₃ Garnet up to 9 GPa

Table 1

Observed and calculated X-ray diffraction patterns of Mg₃Y₂(SiO₄)₃ at ambient conditions.

h k l	𝑑obs (Å)	𝑑cal (Å)	𝑑obs/𝑑cal−1
2 2 0	4.24142	4.24233	−0.00021
3 2 1	3.20735	3.20690	0.00014
4 0 0	2.99925	2.99978	−0.00018
4 2 0	2.68323	2.68308	0.00006
4 2 2	2.44947	2.44931	0.00007
4 3 1	2.35309	2.35322	−0.00006
5 2 1	2.19082	2.19073	0.00004
4 4 0	2.12145	2.12116	0.00014
6 1 1	1.94676	1.94651	0.00013
4 4 4	1.73204	1.73192	0.00007
6 4 0	1.66432	1.66398	0.00020
5 5 2	1.63324	1.63287	0.00023
6 4 2	1.60366	1.60345	0.00013
8 0 0	1.50014	1.49989	0.00017

Calculated d-spacings are based on the cubic unit-cell dimensions of a = 11.9995 Å.