Table S3: Symmetry Decomposition of Voigt Elastic Stiffness Matrices,,,,
     After Browaeys and Chevrot (2004),,,,
Sample,Voigt Elastic Stiffness Matrix Symmetry Components (%),,,
,Isotropic,Hexagonal,Ortho-rhombic,Tetragonal + Monoclinic + Triclinic
1. 01GSN2-3,92.553,4.9725,1.9121,0.5624
2. BAN09,90.9678,6.1687,2.5805,0.283
3. BAN15,90.1055,7.2942,1.8208,0.7794
4. C18G1003C01,98.4034,1.0649,0.1655,0.3662
5. CY106,93.4631,3.5248,1.9498,1.0623
6. CY107,87.7098,7.9081,4.0193,0.3627
7. DR221,92.6306,4.2832,2.7046,0.3816
8. DR265,91.7921,6.7895,0.175,1.2434
9. GB15-02A,93.7118,3.4138,2.4265,0.448
10. LAB34,92.2002,6.1576,0.494,1.1482
11. LAB555,85.9383,10.4117,3.4009,0.2491
12. LAB570,92.8583,3.6954,2.6524,0.7939
13. LAB572,94.9676,4.2961,0.498,0.2383
14. SV01-49A,97.1966,1.2146,0.5357,1.0532